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RK-10 Plasma Knee Brace

The Supertech RK-10 PLASMA Knee Brace represents Alpinestars’ highest level of off-road knee protection, engineered for riders who demand world-class support, mobility, and impact performance. Developed using professional MX rider feedback, this ultra-lightweight, low-profile brace combines a forged 34-layer carbon fibre frame with a free-floating Nucleon PLASMA knee protector to deliver elite protection without sacrificing comfort or movement.

Perfect for motocross, enduro and off-road racing, the RK-10 PLASMA is designed to reduce the risk of ligament, tendon, and meniscus injuries while offering superior ventilation, flexibility, and all-day stability.


Key Features

Premium Carbon Fibre Construction

  • 34-layer forged carbon fibre frame engineered for the optimal balance of rigidity and controlled flex.

  • Ultra-lightweight design with exceptional strength and superior weight-saving properties.

  • Asymmetric carbon frame geometry developed using extensive 3D athlete scans for optimized internal volume and perfect hinge alignment.

Advanced Knee Protection

  • Free-floating Nucleon PLASMA knee protector constructed from bio-based viscoelastic polymers for high energy absorption and impact dispersion.

  • Polyurethane outer knee cup backed with Nucleon PLASMA for the perfect blend of protection, flexibility, and scratch resistance.

  • Upper and lower patella extensions ensure consistent knee coverage regardless of leg position.

Ergonomics & Comfort

  • Compact, low-profile 4-point hinge system follows natural knee articulation.

  • Adjustable extension stops (0°–30°) for personalised movement limits.

  • Soft flexible frame extremities eliminate hard-edge contact with the skin.

  • Soft-touch neoprene condyle padding available in multiple thicknesses for a customised fit (replaceable).

  • Non-slip neoprene inner padding keeps the brace stable during aggressive riding (replaceable).

Ventilation & Breathability

  • Highly ventilated Nucleon PLASMA protector and open-frame structure maximise airflow in all riding conditions.

  • Smooth, step-free hinge covers reduce snagging and enhance movement.

Protection Certification

  • CE Certified Knee Protector – EN 1621-1:2012 Level 1

  • Designed to help reduce injuries to:
    • ACL & PCL
    • MCL & LCL
    • Lateral & medial meniscus


Overview

• Sold as a pair
• Ultra-lightweight, race-engineered knee protection
• Designed for MX, Enduro, and Off-Road professionals
• USDA-certified bio-based materials used in Nucleon PLASMA construction
• Built for maximum support, mobility and long-term comfort


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