{"product_id":"petzl-knee-ascent-clip-knee-ascender","title":"Petzl Knee Ascent Clip Knee Ascender","description":"\u003ch2\u003ePetzl Knee Ascent Clip Knee Ascender\u003c\/h2\u003e\n\u003cp\u003eThe Petzl Knee Ascent Clip Knee Ascender is a purpose-built knee ascender assembly designed to support efficient single rope ascents in tree care work. Developed for use with the ZIGZAG or ZIGZAG PLUS mechanical Prusik, this system helps arborists reduce upper body effort while maintaining a smooth and controlled climbing rhythm. Its integrated and adjustable design makes it suitable for regular professional use where consistency and ease of movement are essential.\u003c\/p\u003e\n\u003ch4\u003eAssisted movement for single rope techniques\u003c\/h4\u003e\n\u003cp\u003eThe system is designed to work directly with single rope climbing setups, supporting upward progress by helping raise the climbing system during ascent. An upper strap connects to the mechanical Prusik, allowing the ZIGZAG or ZIGZAG PLUS and CHICANE unit to be advanced efficiently. This configuration helps maintain momentum on longer climbs and supports a more energy-efficient ascent when combined with compatible foot ascenders.\u003c\/p\u003e\n\u003ch4\u003eIntegrated rope clamp and boot connection\u003c\/h4\u003e\n\u003cp\u003eA CROLL L rope clamp is integrated into the Knee Ascent Clip, providing reliable rope engagement and smooth progression on EN 1891 type A low stretch kernmantel ropes. The lower strap connects securely to the sewn webbing on the top of the arborist’s boot, keeping the system correctly aligned throughout movement. This arrangement supports stable tracking on ropes between 8 and 13 mm in diameter, helping maintain consistent performance during ascent.\u003c\/p\u003e\n\u003ch4\u003eAdjustable system for professional durability\u003c\/h4\u003e\n\u003cp\u003eThe Knee Ascent Clip is quick to install and remove thanks to its connectors and adjustment buckles, making it practical for daily use on site. Multiple adjustment points allow the system to adapt to different body shapes and sizes, ensuring a secure and comfortable fit. Supplied with an XS size TOOLBAG tool pouch, the system remains organised and ready for use. Components are available as spare parts, supporting durability and long-term professional use.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eKnee ascender assembly designed for single rope tree climbing\u003c\/li\u003e\n\u003cli\u003eCompatible with ZIGZAG and ZIGZAG PLUS mechanical Prusiks\u003c\/li\u003e\n\u003cli\u003eUpper strap helps advance the climbing system during ascent\u003c\/li\u003e\n\u003cli\u003eIntegrated CROLL L rope clamp for smooth upward progression\u003c\/li\u003e\n\u003cli\u003eLower strap connects to sewn boot webbing for stable alignment\u003c\/li\u003e\n\u003cli\u003eCompatible with ropes from 8 to 13 mm in diameter\u003c\/li\u003e\n\u003cli\u003eDesigned for EN 1891 type A low stretch kernmantel ropes\u003c\/li\u003e\n\u003cli\u003eEasy installation using connectors and adjustment buckles\u003c\/li\u003e\n\u003cli\u003eFully adjustable to suit different body shapes and sizes\u003c\/li\u003e\n\u003cli\u003eSupplied with XS TOOLBAG tool pouch for organisation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Petzl","offers":[{"title":"Default","offer_id":52574142792023,"sku":"D022EA00","price":113.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/0785\/8263\/files\/Petzl-Knee-Ascent-Clip-Knee-Ascender.jpg?v=1768802033","url":"https:\/\/treeworker.com\/products\/petzl-knee-ascent-clip-knee-ascender","provider":"www.treeworker.com","version":"1.0","type":"link"}