Alpinestars RK-1 Plasma Knee Braces Black/Red 6501725-13

Designed specifically for off-road riding, these knee braces offer a perfect balance of protection, comfort, and flexibility. The innovative hybrid frame construction combines a flexible composite over-injected on a high-performance polymer blend, providing exceptional frame rigidity while maintaining flexibility at the upper and lower strap areas. This anatomically profiled design ensures a secure fit that adapts to the natural movement of the knee, reducing the risk of injury to the medial and lateral collateral ligaments, as well as the anterior and posterior cruciate ligaments and menisci.

The core of the protection system is the Nucleon Plasma protector, a viscoelastic material engineered from bio-based polymers that dissipates impact energies effectively. This is paired with replaceable triple segmented knee cups constructed with a durable polyurethane outer shell. The self-centering knee cups and strategically placed patella extensions provide maximum coverage regardless of knee flexion or extension, ensuring superior impact absorption and scratch resistance in all riding positions.

Engineered for durability and precision, the four-point hinge system follows the knee's natural articulation. Equipped with stainless-steel bushings featuring anti-oxidation treatment, the hinges provide smooth movement over time. Riders can customize their protection with adjustable extension stops ranging from 0° to 30°, allowing for a personalized maximum bend angle. The lightweight, highly ventilated construction ensures efficient impact dispersion and all-day comfort during intense off-road sessions.

Comfort is further enhanced by soft-touch thermoformed padding and impact-absorbing condyle padding that keeps the brace securely in place. The four individual straps are backed with non-slip material and utilize high-tensile strength buckles with a keyhole snapping system for quick locking and easy adjustments. Constructed from eco-friendly materials, these knee braces emphasize sustainability without compromising high-performance safety.

Features:

• Hybrid frame construction combining flexible composite and high-performance polymer for optimal rigidity and flexibility
• Nucleon Plasma viscoelastic protector engineered from bio-based polymers for superior impact dissipation
• Replaceable triple segmented knee cups with polyurethane outer shell for enhanced impact protection and scratch resistance
• Anatomically profiled design with self-centering knee cups and patella extensions for maximum coverage
• Four-point hinge system with anti-oxidation stainless-steel bushings for smooth, natural articulation
• Adjustable extension stops (0° to 30°) to customize maximum knee bend and prevent overextension
• Lightweight, highly ventilated design for maximum airflow and impact force dispersion
• Soft-touch thermoformed padding and adjustable condyle padding for a personalized, secure fit
• Non-slip straps with high-tensile strength buckles and keyhole snapping system for easy fastening
• Eco-friendly, impact-absorbing materials emphasizing sustainability and long-term durability