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RK-1 Plasma Knee Brace

The Alpinestars RK-1 PLASMA Knee Brace is anatomically profiled for all forms of off-road riding, providing advanced knee support while remaining lightweight, adaptive and breathable. Built around a Nucleon PLASMA knee protector and an innovative hybrid frame, it delivers exceptional rigidity where it’s needed and flexibility in key strap areas for comfort. Designed to reduce the risk of knee ligament and meniscus injuries, the RK-1 is a performance-focused brace suitable for trail, motocross and enduro riders.

Key Features

• Sold as a pair for complete left and right knee protection
• CE Level 1 certified knee protection (EN1621-1:2012)
• Hybrid frame construction with flexible composite over a high-performance polymer blend for rigidity and comfort
• Triple-segmented knee cups with polyurethane outer shell and Nucleon PLASMA backing for impact absorption, flexibility and scratch resistance
• Constructed from USDA-certified bio-based PLASMA material — eco-friendly and high-performance
• Soft-touch thermoformed padding for secure comfort (replaceable as spare parts)
• Custom-fit condyle padding available in multiple thicknesses (replaceable)
• Four individually adjustable straps with non-slip backing for secure positioning
• High-tensile buckles that are strong, flexible and easy to operate
• Central buckles lock securely with a keyhole snap system
• Ultra-lightweight and adaptive design reduces risk to MCL, LCL, ACL, PCL and meniscus structures

Proudly supplied by DR MOTO — New Zealand’s trusted Alpinestars off-road protection specialist.
Premium knee bracing, expert advice and fast nationwide shipping to keep riders protected in demanding terrain.