ISC STRYDER Foot Ascender – RP227 (Right) / RP228 (Left) Designed for UK tree-care professionals, arborists and rope-access technicians who require a robust foot-ascender for SRT (Single Rope Technique) systems. The STRYDER foot ascender from ISC offers durable construction, ergonomic design, and smooth upward movement. It’s available in two foot orientations — RP227 for right foot, RP228 for left — to suit your climbing style and system setup. Key Features & Benefits Orientation-specific versions: Responsive cam engagement: Foot lever operation: Fully adjustable strap system: Compact & lightweight: Rope-compatible for common SRT lines: Technical Specifications Specification Detail Model / SKU RP227 (Right Foot) / RP228 (Left Foot) Rope Diameter Range 8 mm − 13 mm Minimum Breaking Strength (MBS) 2.5 kN (≈562 lbf) Weight (including strap) 198 g Approved Standards Not for PPE / life-safety use Why Choose the STRYDER Foot Ascender? If you’re working in arb-care, tree-climbing or rope-access in the UK and want a foot ascender that offers reliability, adjustability and minimal weight, the STRYDER is an excellent choice. Its tried geometry, adjustable strap system and dedicated foot orientation mean it’s tailored for professional use where single-rope systems and efficiency matter.