{"title":"Knee Ascenders","description":"\u003cp\u003eKnee ascenders are essential climbing tools for efficient rope ascent, giving arborists smoother, faster and more ergonomic movement during SRT and tree climbing work. This collection includes high-performance arborist knee ascenders, foot and knee ascender systems, CT knee ascenders and complete knee ascender setups designed for professional use. Built for durability and precise rope tracking, they reduce leg fatigue and improve consistency on long ascents. Ideal for SRT climbers looking to optimise efficiency, these knee ascenders deliver reliable performance and seamless integration with modern climbing systems used throughout UK arboriculture.\u003c\/p\u003e","products":[{"product_id":"haas-tree-gear-haas-velox-climbing-ascender","title":"Nylon HAAS Velox Ascent System","description":"\u003ch1\u003eWeaver Nylon HAAS® Velox Ascent System\u003c\/h1\u003e\n\u003cp\u003eThe Weaver Nylon HAAS® Velox Ascent System enhances the original, industry-leading HAAS® design with an additional 18\" of bungee for a full 30\" of smooth, responsive elongation. Built for professional climbers who demand efficiency, speed and consistency, the Velox delivers a friction-reduced ascent with zero setup and instant compatibility for multiple users.\u003c\/p\u003e\n\u003cp\u003eThe dual-tube in-line bungee system creates uninterrupted upward travel with no “dead spots,” while the precision-machined aluminium block and stainless-steel sealed-bearing shiv maximise smoothness and control. The snap connection sits just above the ascender, ensuring perfect extraction every time. With a fully replaceable bungee—swappable in under five minutes without tools—the Velox is engineered for long-term, daily professional use.\u003c\/p\u003e\n\u003cp\u003eThe short style version is ideal for climbers 5' tall and under, providing optimal positioning and stroke efficiency.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePatented 30\" in-line bungee system for extended, smooth ascent.\u003c\/li\u003e\n\u003cli\u003eDouble-tube design offers over 30\" of elongation without dead return zones.\u003c\/li\u003e\n\u003cli\u003eZero-setup system—instantly usable by multiple climbers without adjustment.\u003c\/li\u003e\n\u003cli\u003eSnap positioned above ascender for consistent extension and smooth return.\u003c\/li\u003e\n\u003cli\u003eBungee routed through a machined aluminium block with stainless-steel sealed-bearing shiv for friction reduction.\u003c\/li\u003e\n\u003cli\u003eSecond channel return path for balanced, efficient operation.\u003c\/li\u003e\n\u003cli\u003eTool-free bungee replacement in under five minutes.\u003c\/li\u003e\n\u003cli\u003eShort style model designed for climbers 5' (152 cm) and under.\u003c\/li\u003e\n\u003cli\u003eU.S. Patents: #9,352,190 and #9,643,054; European Patent: #2994202.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003ch3\u003eWhat makes the Velox different from the standard HAAS® system?\u003c\/h3\u003e\n\u003cp\u003eThe Velox includes an extra 18\" of bungee for a total of 30\", improving efficiency and eliminating dead spots during ascent.\u003c\/p\u003e\n\u003ch3\u003eIs the bungee user-replaceable?\u003c\/h3\u003e\n\u003cp\u003eYes. It can be replaced in under five minutes with no tools required.\u003c\/p\u003e\n\u003ch3\u003eWho is the short style version designed for?\u003c\/h3\u003e\n\u003cp\u003eClimbers who are 5' tall (152 cm) and under will benefit from the improved ergonomics of the short model.\u003c\/p\u003e\n\u003ch3\u003eDoes it require setup or adjustment?\u003c\/h3\u003e\n\u003cp\u003eNo—this is a zero-setup system that can be shared between users without adjustment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- FAQ Schema --\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HAAS Tree Gear","offers":[{"title":"Default Title","offer_id":45717490827508,"sku":"HP-08-98110","price":165.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/HAAS_Velox_Climbing_Ascender_Blue.jpg?v=1756821565"},{"product_id":"haas-tree-gear-haas-velox-clip-n-go-climbing-ascender-descender","title":"Nylon HAAS Velox Clip’N Step Boots Ascent System","description":"\u003ch1\u003eWeaver Nylon HAAS® Velox Clip’N Step Boots Ascent System\u003c\/h1\u003e\n\u003cp\u003eThe Weaver Nylon HAAS® Velox Clip’N Step Boots Ascent System is purpose-built for climbers using Clip’N Step boots, offering a smooth, efficient and fully adjustable ascent with zero setup time. The innovative dual-channel bungee system delivers over 30\" of usable elongation, ensuring continuous, fluid movement through every climbing stroke.\u003c\/p\u003e\n\u003cp\u003eDesigned for professional arborists, this robust ascent device eliminates “dead spots” thanks to its advanced inline bungee layout and machined aluminium pulley block with stainless steel sealed bearings. The result is a friction-reduced ascent that feels responsive, powerful and consistent—whether you're climbing once or sharing kit with multiple users.\u003c\/p\u003e\n\u003cp\u003eThe system is user-serviceable, with the bungee replaceable in under five minutes and no tools required. Built for reliability and repeated use, the HAAS® Velox remains a top choice for climbers seeking a lightweight, zero-adjustment ascent solution tailored for Clip’N Step boots.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned to clip directly into the Clip’N Step Boots ascent foot loop.\u003c\/li\u003e\n\u003cli\u003eDouble-tube system houses 30\" of inline bungee for over 30\" of smooth elongation.\u003c\/li\u003e\n\u003cli\u003eZero-setup ascent system—ideal for multiple users without adjustment.\u003c\/li\u003e\n\u003cli\u003eSnap positioned just above the ascender for efficient extension and no dead return zones.\u003c\/li\u003e\n\u003cli\u003eFriction-reducing design with bungee terminating at the top, routed through a machined aluminium block.\u003c\/li\u003e\n\u003cli\u003eStainless steel sealed bearing shiv ensures a smooth, controlled return.\u003c\/li\u003e\n\u003cli\u003eBungee returns through a second channel and ties neatly to the integrated snap.\u003c\/li\u003e\n\u003cli\u003eUser-replaceable bungee—swap in under five minutes, tool-free.\u003c\/li\u003e\n\u003cli\u003eU.S. Patents: #9,352,190 and #9,643,054; European Patent: #2994202.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDoes this system require size adjustments?\u003c\/h3\u003e\n\u003cp\u003eNo. The HAAS® Velox is completely size-independent and can be used by multiple climbers with no adjustment needed.\u003c\/p\u003e\n\u003ch3\u003eIs the bungee replaceable?\u003c\/h3\u003e\n\u003cp\u003eYes. The bungee can be replaced in under five minutes without tools.\u003c\/p\u003e\n\u003ch3\u003eWhat boots is this system designed for?\u003c\/h3\u003e\n\u003cp\u003eIt is specifically engineered for arborists using Clip’N Step boots with an ascent loop.\u003c\/p\u003e\n\u003ch3\u003eWhat makes the Velox smoother than standard foot ascenders?\u003c\/h3\u003e\n\u003cp\u003eThe dual-tube inline bungee, sealed-bearing shiv and friction-reduction routing create a continuous, responsive return.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- FAQ Schema --\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HAAS Tree Gear","offers":[{"title":"Default Title","offer_id":45717491450100,"sku":"HP-08-98109","price":165.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/Nylon-HAAS-Velox-Clip_N-Step-Boots-Ascent-System.png?v=1772446350"},{"product_id":"petzl-lower-strap-for-knee-ascent-clip-ascender","title":"Lower Strap for KNEE ASCENT CLIP Ascender","description":"\u003ch2\u003ePETZL KNEE ASCENT CLIP Lower Strap – Replacement for Arborist Boot Assembly\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEnsure the continued efficiency and comfort of your climbing system with the \u003cb\u003ePETZL KNEE ASCENT CLIP Lower Strap\u003c\/b\u003e. This genuine \u003cb\u003ereplacement lower strap\u003c\/b\u003e is an essential component for your \u003cb\u003eKNEE ASCENT CLIP assembly\u003c\/b\u003e, designed to keep your foot ascender securely positioned for optimal climbing performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"citation-522\"\u003eThis strap is specifically designed to feature a \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-522\"\u003econnector for attaching directly to the webbing on the arborist's boot\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-522 citation-end-522\"\u003e, ensuring a stable and integrated system.\u003csup data-turn-source-index=\"1\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-521\"\u003eIt seamlessly attaches to the \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-521\"\u003elower hole of your CROLL rope clamp\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-521 citation-end-521\"\u003e, providing a vital connection point for your knee ascender setup.\u003csup data-turn-source-index=\"2\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"citation-521 citation-end-521\"\u003eReplacing this strap regularly ensures your \u003cb\u003earborist climbing system\u003c\/b\u003e remains in top working order, allowing for efficient and less fatiguing ascents in the tree canopy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with the KNEE ASCENT CLIP assembly\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFeatures a connector for attaching to the webbing on the arborist’s boot\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAttaches to the lower hole of the CROLL rope clamp\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 40 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeep your \u003cb\u003etree climbing equipment\u003c\/b\u003e performing at its best with the \u003cb\u003ePETZL KNEE ASCENT CLIP Lower Strap\u003c\/b\u003e, a vital part for any professional arborist in the UK.\u003c\/p\u003e","brand":"Petzl","offers":[{"title":"Default Title","offer_id":45718384443636,"sku":"PZ-D022GA00","price":14.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/Petzl-Lower-Strap-for-KNEE-ASCENT-CLIP-Ascender.jpg?v=1756827006"},{"product_id":"camp-turboknee-knee-ascender-ascent-system","title":"Turboknee Knee Ascender Ascent System","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eAre you a tree surgeon, arborist, or professional climber seeking a smoother, more efficient ascent? \u003c\/strong\u003eLook no further than the CAMP Turboknee Knee Ascender Ascent System. The bungee cord can be installed into the special routing points on the chest parts of the Tree Access SRT Chest and Tree Access XT harnesses, or it can be rigged to any tree climbing harness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"5:1-5:23\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eEffortless Ascents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"7:1-7:269\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eThe CAMP Turboknee features the ingenious Turbochest ascender. This ascender boasts a patented pulley system with two rollers, significantly reducing friction during rope pulls. This translates to \u003cstrong\u003eeffortless upward movement\u003c\/strong\u003e, saving you energy for those long climbs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"9:1-9:25\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eSecure and Adaptable:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"11:1-11:293\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eThe knee ascender itself is built with robust materials to ensure reliable performance. The foot loop is crafted from strong 4mm cord and is fully adjustable to fit a variety of climbers. This adjustability allows for a \u003cstrong\u003epersonalized and secure fit\u003c\/strong\u003e, enhancing confidence during your ascent.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"13:1-13:31\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eDesigned for Professionals:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"15:1-15:206\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eThe CAMP Turboknee system is specifically designed with professional tree climbers in mind. It's compatible with ropes ranging from 8mm to 13mm in diameter, making it suitable for most climbing situations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"17:1-17:36\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eInvest in Efficiency and Safety:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"19:1-19:247\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eThe CAMP Turboknee Ascent System is an excellent investment for any professional climber who prioritizes efficiency and safety. With its innovative design and robust build quality, this system will help you \u003cstrong\u003ereach new heights with greater ease\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"21:1-21:17\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"23:1-27:0\"\u003e\n\u003cli data-sourcepos=\"23:1-23:63\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eTurbochest ascender with dual rollers for smoother rope glide\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sourcepos=\"24:1-24:39\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eAdjustable foot loop for a secure fit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sourcepos=\"25:1-25:38\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eLightweight and durable construction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sourcepos=\"26:1-27:0\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eSuitable for ropes 8mm to 13mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-sourcepos=\"28:1-28:112\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eTake your climbing to the next level with the CAMP Turboknee Knee Ascender Ascent System. Order yours today!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"CAMP","offers":[{"title":"Default Title","offer_id":45718887465204,"sku":"CP-3127","price":94.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/camp-turboknee-knee-ascender-ascent-system.png?v=1753100032"},{"product_id":"arbpro-gemini-knee-ascender","title":"Gemini Knee Ascender","description":"\u003ch1\u003eArbpro GEMINI KNEE Bungee Standard Kit\u003c\/h1\u003e\n\n\u003cp\u003eThe Arbpro GEMINI KNEE Bungee Standard Kit is a compact and lightweight knee ascender system designed for modern arborist SRT climbing setups. Built for efficient rope ascent, it can be used with integrated bungee cords found on the latest arborist harnesses or as a standalone system using the included Dyneema bungee cord.\u003c\/p\u003e\n\n\u003cp\u003eEquipped with an Arbpro compact rope clamp, adjustable foot loop, two lightweight accessory karabiners and an efficient Dyneema-covered elastic cord, the GEMINI KNEE Bungee provides a simple, practical and effective solution for climbers using Single Rope Technique. The rope clamp features an integrated locking lever to help prevent accidental opening during use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eArbpro GEMINI KNEE Bungee Standard Kit\u003c\/li\u003e\n  \u003cli\u003eCompact knee ascender for SRT climbing systems\u003c\/li\u003e\n  \u003cli\u003eCan be used with integrated harness bungee systems\u003c\/li\u003e\n  \u003cli\u003eCan also be used as a standalone product with included Dyneema bungee\u003c\/li\u003e\n  \u003cli\u003eIncludes Arbpro compact rope clamp\u003c\/li\u003e\n  \u003cli\u003eIntegrated locking lever helps avoid accidental opening\u003c\/li\u003e\n  \u003cli\u003eAdjustable foot loop for practical setup\u003c\/li\u003e\n  \u003cli\u003eIncludes two lightweight accessory karabiners\u003c\/li\u003e\n  \u003cli\u003eEfficient Dyneema-covered elastic cord included\u003c\/li\u003e\n  \u003cli\u003eSuitable for 8–13mm ropes\u003c\/li\u003e\n  \u003cli\u003eOptions available for all footwear\u003c\/li\u003e\n  \u003cli\u003eNot PPE and not suitable for life support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDesigned for Modern SRT Climbing\u003c\/h2\u003e\n\u003cp\u003eThe GEMINI KNEE Bungee is designed for arborists using Single Rope Technique, helping support efficient ascent when paired with suitable climbing systems, harness setups and compatible rope.\u003c\/p\u003e\n\n\u003ch2\u003eIntegrated or Standalone Use\u003c\/h2\u003e\n\u003cp\u003eThis kit can be used with bungee systems integrated into modern arborist harnesses or as a standalone knee ascender using the Dyneema bungee cord supplied in the standard package.\u003c\/p\u003e\n\n\u003ch2\u003eCompact Arbpro Rope Clamp\u003c\/h2\u003e\n\u003cp\u003eThe included Arbpro compact rope clamp is suitable for 8–13mm ropes and features an integrated locking lever designed to reduce the risk of accidental opening.\u003c\/p\u003e\n\n\u003ch2\u003eAdjustable Foot Loop\u003c\/h2\u003e\n\u003cp\u003eThe adjustable foot loop allows climbers to tune the setup for comfort, efficiency and preferred climbing style, making the system practical for a range of footwear and SRT configurations.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Safety Notice\u003c\/h2\u003e\n\u003cp\u003eThe Arbpro GEMINI KNEE Bungee Standard Kit is not PPE and must not be used as a life-support, fall-arrest, work-positioning or safety-critical component.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; border:1px solid #ddd; text-align:left; font-size:14px;\"\u003e\n  \u003ctr\u003e\n    \u003cth style=\"border:1px solid #ddd; padding:10px;\"\u003eSpecification\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd; padding:10px;\"\u003eDetails\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eProduct Name\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eArbpro GEMINI KNEE Bungee Standard Kit\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eProduct Type\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eKnee ascender kit\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eClimbing Technique\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eSRT \/ Single Rope Technique\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eRope Compatibility\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003e8–13mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eRope Clamp\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eArbpro compact rope clamp with locking lever\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eBungee Cord\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eDyneema-covered elastic cord included\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eFoot Loop\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eAdjustable foot loop\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eKarabiners\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eTwo lightweight accessory karabiners included\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003ePPE Status\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eNot PPE\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eProfessional arborists and tree climbers\u003c\/li\u003e\n  \u003cli\u003eSRT ascent systems\u003c\/li\u003e\n  \u003cli\u003eKnee ascender setups\u003c\/li\u003e\n  \u003cli\u003eModern arborist harnesses with integrated bungee systems\u003c\/li\u003e\n  \u003cli\u003eStandalone knee ascender configurations\u003c\/li\u003e\n  \u003cli\u003eClimbers wanting a compact, lightweight ascent aid\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eExplore More\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.gustharts.com\/collections\/ascenders-descenders\"\u003eDescenders \u0026amp; Ascenders\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-int\/collections\/climbing-harness\"\u003eClimbing Harnesses\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-int\/collections\/climbing-equipment-main-menu\"\u003eClimbing Equipment\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-int\/collections\/climbing-ropes\"\u003eClimbing Ropes\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-int\/collections\/lanyards-fliplines-accessories\"\u003eWork Positioning Lanyards\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBest For\u003c\/h2\u003e\n\u003cp\u003eThe Arbpro GEMINI KNEE Bungee Standard Kit is best suited to arborists who want a compact, practical knee ascender for efficient SRT climbing, with the flexibility to run from harness-integrated bungee systems or the included standalone Dyneema bungee.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the Arbpro GEMINI KNEE Bungee?\u003c\/h2\u003e\n\u003cp\u003eWith its lightweight design, compact rope clamp, adjustable foot loop, locking lever and included Dyneema bungee, the Arbpro GEMINI KNEE Bungee Standard Kit is a simple and effective ascent accessory for modern arborist SRT systems.\u003c\/p\u003e","brand":"Arbpro","offers":[{"title":"Default Title","offer_id":45719013523700,"sku":"AP-GE\/KN\/1","price":96.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/Arbpro_Gemini_Knee_Ascender.jpg?v=1753098766"},{"product_id":"dmm-tendon-knee-ascender","title":"Tendon Knee Ascender","description":"\u003ch1\u003eDMM Tendon Knee Ascender Lift System\u003c\/h1\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e is a clever, low-profile \u003cstrong\u003eknee ascender lift system\u003c\/strong\u003e designed to improve rope ascent efficiency while keeping your setup clean, compact and unobtrusive. Built to provide a tidy and effective solution for \u003cstrong\u003elifting knee ascenders\u003c\/strong\u003e, the \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e helps climbers maintain smoother upward movement with less drag and better system alignment.\u003c\/p\u003e\n\n\u003cp\u003eAt the heart of the system is a long length of \u003cstrong\u003ehigh-performance shock cord\u003c\/strong\u003e routed around the full circumference of the climber’s waist. This design gives the \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e a greater range of elongation and more consistent tension as it stretches, helping the knee ascender lift more efficiently throughout the climbing cycle. When not in use, the system \u003cstrong\u003efully retracts neatly inside\u003c\/strong\u003e, helping keep the harness setup clean and uncluttered.\u003c\/p\u003e\n\n\u003cp\u003eDesigned to integrate neatly with \u003cstrong\u003eDMM Kinisi harnesses\u003c\/strong\u003e, the \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e is a highly refined rope ascent accessory for arborists who want a more efficient and better organised climbing system.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned to \u003cstrong\u003elift knee ascenders\u003c\/strong\u003e during rope ascent\u003c\/li\u003e\n  \u003cli\u003eImproves \u003cstrong\u003eascending efficiency\u003c\/strong\u003e and system tidiness\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-performance shock cord\u003c\/strong\u003e routed around the waist for improved elongation and tension\u003c\/li\u003e\n  \u003cli\u003eSystem \u003cstrong\u003efully retracts internally\u003c\/strong\u003e when not in use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmooth flared tube inlet\u003c\/strong\u003e helps reduce wear and improve performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDyneema mantle elastic\u003c\/strong\u003e improves durability and lifespan\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTendon Tube Clips\u003c\/strong\u003e designed to fit Kinisi harness attachment holes\u003c\/li\u003e\n  \u003cli\u003eIncludes \u003cstrong\u003eDMM XSRE Swivel Carabiner\u003c\/strong\u003e for compact connection to the knee ascender\u003c\/li\u003e\n  \u003cli\u003eCan be used with a second \u003cstrong\u003eXSRE Swivel Carabiner\u003c\/strong\u003e for \u003cstrong\u003edouble lifting power\u003c\/strong\u003e and improved alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImproves Knee Ascender Efficiency\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e is designed to help the knee ascender return more effectively during each step of the ascent, improving climbing efficiency and reducing unnecessary slack or drag. This makes ascending smoother and helps create a cleaner, more refined rope walking setup.\u003c\/p\u003e\n\n\u003cp\u003eFor climbers who spend long periods ascending SRT systems, this can make a noticeable difference in efficiency and comfort.\u003c\/p\u003e\n\n\u003ch2\u003eFull-Waist Shock Cord Routing for Better Performance\u003c\/h2\u003e\n\u003cp\u003eUnlike shorter elastic lift systems, the \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e routes its shock cord around the \u003cstrong\u003efull circumference of the waist\u003c\/strong\u003e. This increases the total available stretch range and helps maintain more consistent lifting tension throughout the movement cycle.\u003c\/p\u003e\n\n\u003cp\u003eThe result is a more even and efficient lift action, particularly useful when paired with modern knee ascender systems.\u003c\/p\u003e\n\n\u003ch2\u003eRetracts Cleanly When Not in Use\u003c\/h2\u003e\n\u003cp\u003eOne of the standout features of the \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e is how neatly it stores itself when not under load. The system retracts cleanly into its housing, helping reduce snagging, clutter and unnecessary hanging components on the harness.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt for Durability \u0026amp; Reduced Wear\u003c\/h2\u003e\n\u003cp\u003eThe system uses a \u003cstrong\u003esmooth, flared tube inlet\u003c\/strong\u003e and a \u003cstrong\u003eDyneema mantle elastic\u003c\/strong\u003e to reduce friction and wear over time. This helps improve overall efficiency while also extending the working life of the system in regular professional use.\u003c\/p\u003e\n\n\u003ch2\u003eKinisi Harness Compatible\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTendon Tube Clips\u003c\/strong\u003e are specifically designed to interface with the attachment holes on \u003cstrong\u003eDMM Kinisi harnesses\u003c\/strong\u003e, making integration clean and secure for climbers already using the Kinisi platform.\u003c\/p\u003e\n\n\u003ch2\u003eIncluded Connection Hardware\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e includes a \u003cstrong\u003eDMM XSRE Swivel Carabiner\u003c\/strong\u003e, providing a secure and compact connection point for the knee ascender.\u003c\/p\u003e\n\n\u003cp\u003eFor enhanced performance, the addition of a \u003cstrong\u003esecond XSRE Swivel Carabiner\u003c\/strong\u003e allows both ends of the elastic to be connected, which can:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003eDouble the lifting power\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eHelp keep the system \u003cstrong\u003ebetter aligned\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; border:1px solid #ddd; text-align:left; font-size:14px;\"\u003e\n  \u003ctr\u003e\n    \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSpecification\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eDetails\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eProduct Type\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eKnee ascender lift system\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003ePrimary Use\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eImproving rope ascent efficiency\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eElastic Construction\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eHigh-performance shock cord with Dyneema mantle\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eIncluded Connector\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eDMM XSRE Swivel Carabiner\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eHarness Compatibility\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eDMM Kinisi harnesses\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSRT rope ascent systems\u003c\/li\u003e\n  \u003cli\u003eKnee ascender users\u003c\/li\u003e\n  \u003cli\u003eArborists wanting cleaner climbing setups\u003c\/li\u003e\n  \u003cli\u003eDMM Kinisi harness users\u003c\/li\u003e\n  \u003cli\u003eClimbers wanting more efficient upward movement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBest For\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e is best suited to climbers who want a \u003cstrong\u003ecleaner, more efficient and better integrated knee ascender lift system\u003c\/strong\u003e for rope ascent.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the DMM Tendon?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDMM Tendon\u003c\/strong\u003e is a well-thought-out climbing accessory that improves ascent efficiency while keeping your harness setup tidy and refined. For climbers using knee ascenders regularly, it is a smart and highly functional upgrade.\u003c\/p\u003e","brand":"DMM","offers":[{"title":"Default Title","offer_id":45719030366452,"sku":"DD-HC600T","price":42.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/DMM_Tendon_Knee_Ascender.jpg?v=1753098282"},{"product_id":"gemini-magnetic-upgrade-kit","title":"Gemini Magnetic Upgrade Kit","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch1\u003eArbpro Gemini Magnetic Upgrade Kit\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eArbpro Gemini Magnetic Upgrade Kit\u003c\/strong\u003e is a cutting-edge accessory designed to enhance the functionality of your knee climbing clamp. By replacing traditional carabiner connections with a practical magnetic system, this upgrade offers seamless and efficient connections between your knee ascender, chest strap, and Ez-Loop foot loop.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Connection:\u003c\/strong\u003e Utilises powerful magnets to automatically connect components when within range, ensuring quick and secure attachments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking Mechanism:\u003c\/strong\u003e Features a special locking system that guarantees a secure hold during use, preventing accidental disengagement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Release:\u003c\/strong\u003e Components can be easily detached by pulling the release catch, allowing for swift adjustments or removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Storage:\u003c\/strong\u003e When not in use, the system can be neatly stored using the supplied strap attachment, keeping your gear organised on your harness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis upgrade kit is compatible with the \u003ca title=\"Arbpro Gemini Knee Ascender\" href=\"https:\/\/www.gustharts.com\/products\/arbpro-gemini-knee-ascender\"\u003eArbpro Gemini Knee Ascender\u003c\/a\u003e and is designed to work seamlessly with the Ez-Loop foot loop and various chest straps.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eChest harness connection\u003c\/li\u003e\n\u003cli\u003eBuckle to add on the ascender\u003c\/li\u003e\n\u003cli\u003eDown part replacement\u003c\/li\u003e\n\u003cli\u003eFoot loop\u003c\/li\u003e\n\u003cli\u003eStandard harness storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the Gemini Magnetic Upgrade Kit?\u003c\/h2\u003e\n\u003cp\u003eEnhance your climbing efficiency with the Gemini Magnetic Upgrade Kit. The innovative magnetic system reduces the need for traditional carabiners, streamlining your gear setup and allowing for quicker transitions between climbing phases. Its secure locking mechanism ensures safety, while the easy-release feature offers flexibility when adjustments are needed.\u003c\/p\u003e\n\u003cp\u003eUpgrade your climbing experience with the Arbpro Gemini Magnetic Upgrade Kit—where innovation meets reliability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Arbpro","offers":[{"title":"Default Title","offer_id":56363718115702,"sku":"AP-GE\/MAG\/K","price":85.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/Arbpro-Gemini-Magnetic-Upgrade-Kit.png?v=1759325217"},{"product_id":"knee-grab-ascender","title":"KNEE GRAB Ascender","description":"\u003ch1\u003ePETZL KNEE GRAB – Knee Ascender for SRS Climbing Systems\u003c\/h1\u003e\n\n\u003cp\u003eThe PETZL KNEE GRAB is a lightweight and efficient knee ascender designed to make ascending on single rope systems (SRS) smoother and less physically demanding. Built for professional arborists, it integrates seamlessly with compatible harnesses such as the SEQUOIA PLUS, improving climbing efficiency and reducing fatigue during long ascents.\u003c\/p\u003e\n\n\u003cp\u003eCombining a PANTIN rope clamp with an adjustable foot loop, the KNEE GRAB delivers reliable rope engagement and optimal ergonomics for modern tree climbing techniques.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eKnee ascender designed for SRS (Single Rope System) climbing\u003c\/li\u003e\n  \u003cli\u003eIncludes PETZL PANTIN rope clamp (right) for efficient rope capture\u003c\/li\u003e\n  \u003cli\u003eAdjustable foot loop with buckle for secure and comfortable fit\u003c\/li\u003e\n  \u003cli\u003eCompatible with SEQUOIA PLUS and similar arborist harnesses\u003c\/li\u003e\n  \u003cli\u003eQuick setup using accessory carabiners (e.g. MINO – not included)\u003c\/li\u003e\n  \u003cli\u003eAdjustable system to suit different climber heights\u003c\/li\u003e\n  \u003cli\u003eCatch mechanism allows easy rope installation\u003c\/li\u003e\n  \u003cli\u003eReplaceable textile foot loop available for extended product life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eEfficient SRS Ascents\u003c\/h2\u003e\n\u003cp\u003eThe KNEE GRAB improves climbing efficiency by assisting upward movement on the rope, reducing effort and increasing productivity during ascents.\u003c\/p\u003e\n\n\u003ch2\u003eErgonomic \u0026amp; Adjustable\u003c\/h2\u003e\n\u003cp\u003eThe adjustable foot loop ensures a secure fit and optimal positioning, allowing climbers to fine-tune the system for comfort and performance.\u003c\/p\u003e\n\n\u003ch2\u003eQuick Setup \u0026amp; Easy Use\u003c\/h2\u003e\n\u003cp\u003eDesigned for fast installation, the system integrates easily with your existing climbing setup and allows smooth rope engagement with minimal effort.\u003c\/p\u003e\n\n\u003ch2\u003eDurable \u0026amp; Serviceable\u003c\/h2\u003e\n\u003cp\u003eWith replaceable textile components and robust construction, the KNEE GRAB is built for long-term professional use.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; border:1px solid #ddd; text-align:left; font-size:14px;\"\u003e\n  \u003ctr\u003e\n    \u003cth style=\"border:1px solid #ddd; padding:10px;\"\u003eSpecification\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd; padding:10px;\"\u003eDetails\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eProduct Name\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003ePETZL KNEE GRAB\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eType\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eKnee ascender\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eWeight\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003e110 g\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eMin Rope Diameter\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003e7 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eMax Rope Diameter\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003e13 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eRope Type\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eLow stretch kernmantle\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eCompatibility\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eSEQUOIA PLUS and compatible arborist harnesses\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eProfessional arborists and tree climbers\u003c\/li\u003e\n  \u003cli\u003eSRS (Single Rope System) climbing techniques\u003c\/li\u003e\n  \u003cli\u003eEfficient rope ascent systems\u003c\/li\u003e\n  \u003cli\u003eTree care and canopy access work\u003c\/li\u003e\n  \u003cli\u003eModern mechanical climbing setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBest For\u003c\/h2\u003e\n\u003cp\u003eThe PETZL KNEE GRAB is best for professionals looking to improve efficiency and reduce fatigue when ascending using SRS techniques.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the PETZL KNEE GRAB?\u003c\/h2\u003e\n\u003cp\u003eCombining lightweight design, ease of use and professional-grade performance, the KNEE GRAB is a valuable addition to any modern arborist climbing system.\u003c\/p\u003e","brand":"Petzl","offers":[{"title":"Default Title","offer_id":57772408439158,"sku":"PZ-B022BA00","price":72.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/Petzl-KNEE-GRAB-Ascender.png?v=1777627416"},{"product_id":"knee-ascent-kit-ascender","title":"KNEE ASCENT Kit Ascender","description":"\u003ch1\u003ePETZL KNEE ASCENT Kit – Complete SRS Knee Ascender System\u003c\/h1\u003e\n\n\u003cp\u003eThe PETZL KNEE ASCENT Kit is a complete solution designed to improve efficiency when ascending using Single Rope System (SRS) techniques. Engineered for professional arborists, this system integrates seamlessly with the SEQUOIA harness and other compatible tree care sit harnesses.\u003c\/p\u003e\n\n\u003cp\u003eCombining a knee ascender, elastic return system, tube guide and foot loop, the KNEE ASCENT Kit delivers smoother, more efficient upward movement while reducing fatigue during long climbs.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete SRS ascent system for professional arborists\u003c\/li\u003e\n  \u003cli\u003eIncludes knee ascender, elastic band, tube guide and foot loop\u003c\/li\u003e\n  \u003cli\u003eIntegrated PANTIN rope clamp (right) for efficient rope capture\u003c\/li\u003e\n  \u003cli\u003eCompatible with PETZL SEQUOIA harness and similar systems\u003c\/li\u003e\n  \u003cli\u003eElastic return system improves climbing efficiency\u003c\/li\u003e\n  \u003cli\u003eAdjustable components for a personalised fit\u003c\/li\u003e\n  \u003cli\u003eIncludes MINO accessory carabiners for quick connection\u003c\/li\u003e\n  \u003cli\u003eReplaceable components available for long-term use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eComplete SRS Climbing Solution\u003c\/h2\u003e\n\u003cp\u003eThis all-in-one kit provides everything needed to optimise rope ascent, making it ideal for modern arborist climbing systems.\u003c\/p\u003e\n\n\u003ch2\u003eEnhanced Efficiency\u003c\/h2\u003e\n\u003cp\u003eThe high-tensile elastic return system increases efficiency by automatically advancing the rope clamp, reducing effort during upward movement.\u003c\/p\u003e\n\n\u003ch2\u003eErgonomic \u0026amp; Adjustable\u003c\/h2\u003e\n\u003cp\u003eFully adjustable to suit different climber heights and preferences, ensuring comfort and optimal positioning during use.\u003c\/p\u003e\n\n\u003ch2\u003eQuick Setup \u0026amp; Integration\u003c\/h2\u003e\n\u003cp\u003eDesigned for fast installation, the system integrates easily with compatible harnesses using included accessory loops and MINO carabiners.\u003c\/p\u003e\n\n\u003ch2\u003eDurable \u0026amp; Serviceable\u003c\/h2\u003e\n\u003cp\u003eEach component is replaceable, ensuring long-term reliability and sustainability for professional use.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; border:1px solid #ddd; text-align:left; font-size:14px;\"\u003e\n  \u003ctr\u003e\n    \u003cth style=\"border:1px solid #ddd; padding:10px;\"\u003eSpecification\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd; padding:10px;\"\u003eDetails\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eProduct Name\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003ePETZL KNEE ASCENT Kit\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eType\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eComplete knee ascender system\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eWeight\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003e190 g\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eMin Rope Diameter\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003e7 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eMax Rope Diameter\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003e13 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eRope Type\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eLow stretch kernmantle\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eCompatibility\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd; padding:10px;\"\u003eSEQUOIA and compatible arborist harnesses\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eProfessional arborists and climbers\u003c\/li\u003e\n  \u003cli\u003eSRS (Single Rope System) climbing techniques\u003c\/li\u003e\n  \u003cli\u003eEfficient rope ascent systems\u003c\/li\u003e\n  \u003cli\u003eTree care and canopy access work\u003c\/li\u003e\n  \u003cli\u003eAdvanced mechanical climbing setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBest For\u003c\/h2\u003e\n\u003cp\u003eThe PETZL KNEE ASCENT Kit is best for professionals looking for a complete, efficient and ergonomic solution for SRS rope ascent.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the PETZL KNEE ASCENT Kit?\u003c\/h2\u003e\n\u003cp\u003eWith its complete system design, adjustable fit and efficiency-enhancing features, this kit is a premium choice for improving climbing performance and reducing fatigue.\u003c\/p\u003e","brand":"Petzl","offers":[{"title":"Default Title","offer_id":57772477383030,"sku":"PZ-B022AA00","price":97.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/Petzl-KNEE-ASCENT-Kit-Ascender.png?v=1778147987"},{"product_id":"stein-ascentra-knee-ascent-system","title":"Stein ASCENTRA Knee Ascent System","description":"\u003ch1\u003eSTEIN ASCENTRA Knee Ascent System - SRS Knee Ascender Kit for UK Arborists\u003c\/h1\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSTEIN ASCENTRA Knee Ascent System\u003c\/strong\u003e is an upgraded knee ascender kit designed for UK arborists running \u003cstrong\u003eStationary Rope Systems (SRS\/SRT)\u003c\/strong\u003e, working in conjunction with a foot ascender to capture the progress made with each step and convert it into efficient upward movement. The ASCENTRA uses a \u003cstrong\u003eSTEIN Chest Ascender Rope Clamp\u003c\/strong\u003e (SS-4922978088) on a \u003cstrong\u003e4mm HMPE cord lower sling\u003c\/strong\u003e with a 24-strand protective outer sheath, paired with high-response bungee cord for immediate action during movement. Two colour-coded \u003cstrong\u003eSTEIN CONNEXT karabiners\u003c\/strong\u003e (Blue and Gold) are included for fast, identifiable connection during setup. Compatible with ropes from \u003cstrong\u003e9mm to 13mm\u003c\/strong\u003e, the system can be attached to a chest harness or directly to a tree climbing harness. Available from Gustharts with UK stock ready to ship.\u003c\/p\u003e\n\n\u003cp\u003eSTEIN is a British arborist and forestry equipment manufacturer that develops field-tested products specifically for professional tree care, operating as part of the Fletcher Stewart Group — one of the UK's principal arborist product distributors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠ The STEIN CAMBO Foot Loop is required to complete this system and is not included in this kit.\u003c\/strong\u003e It is available separately in three sizes — Small, Medium and Large — matched to your footwear size. See the Pairs Well With section below. Select the correct size before purchasing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠ This product is not PPE. It is a climbing aid for progression only and must never be used for life safety or fall arrest.\u003c\/strong\u003e Maximum load: 120kg. Professional instruction from a fully qualified and competent trainer is strongly recommended before use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesigned specifically for SRS\/SRT climbing systems\u003c\/strong\u003e — captures upward progress made by each foot ascender step for efficient, smooth ascent\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSTEIN Chest Ascender Rope Clamp (SS-4922978088)\u003c\/strong\u003e — dedicated rope clamp for reliable rope progression\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4mm HMPE cord lower sling (SS-5530027P01)\u003c\/strong\u003e — high-modulus polyethylene construction with 24-strand protective outer sheath for durability and abrasion resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-response bungee cord\u003c\/strong\u003e — provides immediate, fast action during movement for smooth climbing rhythm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSTEIN CONNEXT karabiners in Blue and Gold\u003c\/strong\u003e — colour-coded for quick identification during setup and reconfiguration in the canopy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible with ropes 9mm to 13mm\u003c\/strong\u003e — covers the full range of arborist climbing lines in common SRS use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAttaches to chest harness or tree climbing harness\u003c\/strong\u003e — flexible attachment options to suit different harness configurations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to install and remove\u003c\/strong\u003e — quick to clip in and out of your climbing system\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-assembly kit\u003c\/strong\u003e — supplied as components for user assembly; allows configuration to suit individual body size, harness setup and climbing technique\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum load 120kg\u003c\/strong\u003e — do not exceed this limit under any circumstances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; text-align:left; border:1px solid #ddd;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSKU\u003c\/th\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eIncluded\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN Ascender (Chest Rope Clamp)\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSS-4922978088\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e✓\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN Lower Sling (4mm HMPE, 24-strand cover)\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSS-5530027P01\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e✓\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN CONNEXT Karabiner — Blue\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e—\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e✓\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN CONNEXT Karabiner — Gold\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e—\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e✓\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eBlack Bungee Cord — 1m (cut to user size)\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e—\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e✓\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN CAMBO Foot Loop (required to use the system)\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSee sizes below\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e\u003cstrong\u003eNOT INCLUDED — purchase separately\u003c\/strong\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; text-align:left; border:1px solid #ddd;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eBrand\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eModel\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eASCENTRA Knee Ascent System\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eProduct Type\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eKnee Ascent System (climbing aid — not PPE)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eClimbing System\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eStationary Rope System (SRS\/SRT)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eRope Compatibility\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e9mm to 13mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSling Material\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e4mm HMPE (High-Modulus Polyethylene) cord with 24-strand outer protective sheath\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eMaximum Load\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e120kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eKarabiners\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN CONNEXT — 1x Blue, 1x Gold (colour-coded for setup identification)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eBungee\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e1m black bungee cord (cut to user size during assembly)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eAssembly\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSelf-assembly kit — user configured to individual body size and harness setup\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eHarness Compatibility\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eChest harness or tree climbing harness\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eRequired Additional Item\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN CAMBO Foot Loop (not included — sold separately in S, M, L)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003ePPE Classification\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eNOT PPE. Climbing aid for progression only.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eASCENTRA vs the Original STEIN Knee Ascent System\u003c\/h2\u003e\n\u003cp\u003eThe ASCENTRA is an updated design from the original STEIN Knee Ascent System. If you're familiar with the original or are considering upgrading, here's what's changed:\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; text-align:left; border:1px solid #ddd;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eOriginal Knee Ascent System\u003c\/th\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eASCENTRA (this product)\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eAscender\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSS-4922970001\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSS-4922978088 (updated variant)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSling\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN YD Sling (SS-5533067030)\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN Lower Sling — 4mm HMPE, 24-strand cover (SS-5530027P01)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eKarabiners\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eOCUN \/ STEIN standard karabiners (2x matching)\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTEIN CONNEXT Blue + STEIN CONNEXT Gold (colour-coded)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003ePrimary system\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eDRT and SRT\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSRS\/SRT primary focus\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eMaximum load\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eNot specified on original listing\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e120kg (explicitly stated)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eRope compatibility\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eNot specified\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e9mm to 13mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe most practical upgrade in the ASCENTRA is the colour-coded CONNEXT karabiners. During self-assembly and mid-climb reconfiguration, having Blue and Gold karabiners in clearly designated positions reduces setup errors in the canopy. The updated sling construction and dedicated SRS focus also reflect the continued shift in professional UK arboriculture toward SRS climbing as the primary technique. \u003ca href=\"\/en-int\/collections\/climbing-equipment\"\u003eSee the full STEIN climbing range here.\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eImportant Use Guidance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is not PPE and is not a life-safety device.\u003c\/strong\u003e The STEIN ASCENTRA is a climbing aid designed to improve ascending efficiency only. It must never be used for fall arrest, life support or any purpose other than progression assistance within a correctly configured SRS climbing system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum load is 120kg.\u003c\/strong\u003e Do not exceed this limit. This includes the climber's body weight plus all carried equipment, tools and clothing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe STEIN CAMBO Foot Loop is not included and is required.\u003c\/strong\u003e The ASCENTRA cannot be used as a complete system without a CAMBO Foot Loop. Purchase the correct size for your footwear before assembling the system — see the Pairs Well With section below.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis is a self-assembly kit.\u003c\/strong\u003e Because every climber's body size, harness setup and climbing technique differs, the ASCENTRA is supplied as components for user assembly. Professional instruction from a fully qualified and competent trainer is strongly recommended before use. If you are unable to take responsibility for correct assembly, do not use this product.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspect before every use.\u003c\/strong\u003e Check all components — ascender, sling, karabiners and bungee cord — for wear, damage or deformation before each session. Remove any damaged component from service immediately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEnsure system compatibility.\u003c\/strong\u003e Confirm all components in your climbing system are compatible with each other and with this product before use.\u003c\/p\u003e\n\n\u003ch2\u003eAlso Known As\u003c\/h2\u003e\n\u003cp\u003eThe STEIN ASCENTRA is also referred to as a \u003cstrong\u003eknee ascender\u003c\/strong\u003e, knee cam, knee progression system, knee ascent aid and SRS knee system. It is sometimes described as a \u003cstrong\u003eknee roller\u003c\/strong\u003e or \u003cstrong\u003eknee ascent kit\u003c\/strong\u003e in arborist discussions. For ordering, reference \u003cstrong\u003eSTEIN ASCENTRA Knee Ascent System\u003c\/strong\u003e. The separately required foot loop is the \u003cstrong\u003eSTEIN CAMBO SRT Foot Loop\u003c\/strong\u003e, available in Small, Medium and Large.\u003c\/p\u003e\n\n\u003ch2\u003ePairs Well With\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe STEIN CAMBO Foot Loop is required to complete this system — it is not included in the ASCENTRA kit.\u003c\/strong\u003e Select the correct size for your footwear:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSTEIN CAMBO Foot Loop — Small (SS-55 310 27 030)\u003c\/strong\u003e — for climbing boots up to EU size 43\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSTEIN CAMBO Foot Loop — Medium (SS-55 310 27 040)\u003c\/strong\u003e — for chainsaw boots EU sizes 41 to 44\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSTEIN CAMBO Foot Loop — Large (SS-55 310 27 050)\u003c\/strong\u003e — for chainsaw boots EU sizes 45 to 46\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSizes are for guidance only and may vary between footwear brands. If you are between sizes, size up.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/en-int\/collections\/climbing-equipment\"\u003eFoot Ascenders\u003c\/a\u003e — the ASCENTRA works in conjunction with a compatible foot ascender; ensure your foot ascender is compatible with your rope diameter and climbing system\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/en-int\/collections\/climbing-harness\"\u003eClimbing Harnesses\u003c\/a\u003e — the ASCENTRA attaches to a chest harness or directly to your tree climbing harness\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/en-int\/collections\/climbing-equipment\"\u003eSTEIN Climbing Equipment\u003c\/a\u003e — explore the full STEIN SRS climbing range\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eExplore More\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/en-int\/collections\/climbing-equipment\"\u003eClimbing Equipment\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-int\/collections\/climbing-harness\"\u003eClimbing Harnesses\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-int\/collections\/lanyards-fliplines-accessories\"\u003eWork Positioning Lanyards \u0026amp; Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is the STEIN ASCENTRA used for?\u003c\/h3\u003e\n\u003cp\u003eThe ASCENTRA is a knee ascent system for SRS\/SRT climbing. It works alongside a foot ascender to capture upward progress with each step, making ascent smoother and less physically demanding. It is a climbing aid for progression only — not PPE.\u003c\/p\u003e\n\n\u003ch3\u003eIs the STEIN CAMBO Foot Loop included?\u003c\/h3\u003e\n\u003cp\u003eNo. The CAMBO Foot Loop is required to complete the system but is not included in the ASCENTRA kit. It is sold separately in Small (up to EU 43), Medium (EU 41-44) and Large (EU 45-46) to match your footwear size.\u003c\/p\u003e\n\n\u003ch3\u003eIs the ASCENTRA PPE?\u003c\/h3\u003e\n\u003cp\u003eNo. The ASCENTRA is a climbing aid for progression assistance only and must never be used for life safety, fall arrest or any purpose other than its intended function within a correctly configured SRS system.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the maximum load for the ASCENTRA?\u003c\/h3\u003e\n\u003cp\u003e120kg. This includes the climber's body weight plus all carried tools, equipment and clothing. Do not exceed this limit.\u003c\/p\u003e\n\n\u003ch3\u003eWhat ropes is the ASCENTRA compatible with?\u003c\/h3\u003e\n\u003cp\u003eThe ASCENTRA is compatible with ropes from 9mm to 13mm, covering the full range of arborist climbing lines in common SRS use.\u003c\/p\u003e\n\n\u003ch3\u003eWhy does the ASCENTRA come as a self-assembly kit?\u003c\/h3\u003e\n\u003cp\u003eBecause climber body size, harness configuration and climbing technique all affect how the system should be set up. A pre-assembled configuration cannot suit every user. STEIN strongly recommends professional instruction from a fully qualified trainer before assembling and using the system.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between the ASCENTRA and the original STEIN Knee Ascent System?\u003c\/h3\u003e\n\u003cp\u003eThe ASCENTRA uses an updated ascender, a new 4mm HMPE lower sling with a 24-strand cover, and colour-coded STEIN CONNEXT karabiners (Blue and Gold) replacing the original matched karabiners. It is specifically designed for SRS with an explicit 120kg maximum load rating. See the comparison table above for full details.\u003c\/p\u003e\n\n\u003ch3\u003eCan the ASCENTRA be used in DRT\/MRS systems?\u003c\/h3\u003e\n\u003cp\u003eThe ASCENTRA is designed primarily for SRS\/SRT. If you run DRT, the original STEIN Knee Ascent System was specified for both DRT and SRT. Confirm compatibility with your specific system setup before use.\u003c\/p\u003e","brand":"Stein","offers":[{"title":"Default Title","offer_id":58098170954102,"sku":"SS-5530027001","price":80.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/1_c058f9f8-c91d-4497-9236-a3fd93b580c4.png?v=1781610598"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/collections\/Move_in_trees_with_Ryan_Torcicollo_USA_-_France_Use_only_with_Petzl_logo_and_2020_-_PETZL_DISTRIBUTION_-_JROH_-_With_Logo_-_9_1118_20_LD_AL_2cdf0331-2123-476b-bfbc-451a012faa67.jpg?v=1755787469","url":"https:\/\/www.gustharts.com\/en-int\/collections\/knee-ascenders.oembed","provider":"Gustharts","version":"1.0","type":"link"}