Alpinestars SX-1 Plasma Knee Guards

Alpinestars SX-1 Plasma Knee Guards – Lightweight Motocross Knee Protection with DGS Hinge System

Take control of your ride with the Alpinestars SX-1 Plasma Knee Guards, engineered to deliver advanced knee protection, natural movement, and all-day comfort for motocross, enduro, and off-road riding. Designed to enhance rider safety without restricting mobility, these knee guards help you stay confident and in control of your powersports vehicle across any terrain.

At the core is a Plasma Knee Protector, constructed from a USDA-certified biobased viscoelastic material that remains flexible during movement while absorbing and dissipating impact energy when needed. This ensures reliable protection without compromising comfort or flexibility.

The semi-rigid, highly ventilated frame construction provides extensive coverage while promoting airflow to keep you cool during intense rides. Featuring Alpinestars’ Dual Gear System (DGS), the SX-1 knee guards are designed with integrated gear profiles that create a smooth hinge motion—supporting natural knee articulation and maintaining proper positioning throughout your ride.

A dual-density co-injected frame enhances both support and adaptability, while the scooped upper and lower extensions reduce pressure points and prevent discomfort caused by contact with boots or riding gear. The Patella Protection System ensures full knee cup coverage at all angles, with a rigid outer shell designed to help protect against impacts such as handlebar strikes.

Key Features & Benefits:

• Plasma Knee Protection Technology: Flexible, biobased material absorbs and disperses impact forces.
• Dual Gear System (DGS) Hinge: Promotes natural knee movement and keeps guards securely positioned.
• Semi-Rigid Ventilated Frame: Provides strong protection while maximizing airflow and cooling.
• Full Patella Coverage System: Protects the knee cap through all ranges of motion.
• Dual-Density Frame Construction: Balances strength, flexibility, and comfort.
• Ergonomic Scooped Design: Reduces pressure points and improves compatibility with boots.
• Slim, Lightweight Profile: Minimizes bulk while maintaining high protection levels.
• Adjustable Dual Strap Closure System: Hook-and-loop with snap-fit buckles for a secure, customizable fit.
• Sold as a Pair: Complete protection for both knees.
• Black/Red

Why Choose the Alpinestars SX-1 Plasma Knee Guards?

The Alpinestars SX-1 Plasma Knee Guards are built for riders who need serious protection without sacrificing mobility. Their advanced hinge system and flexible armor allow you to move naturally, while the ventilated design keeps you comfortable during long, demanding rides.