Alpinestars RK-1 Plasma Motocross Knee Braces
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
Motocross and off-road riding protection built for dirt bike, enduro and ATV riders. Wear it under your riding pants to protect your knees from crashes, roost and impacts on the track and trail.
✓ Features
- Anatomically profiled for all forms of off-road riding, the RK-1 Plasma Knee Brace has been engineered to provide comfortable knee stability while still being lightweight, breathable, and protective
- Key Features
- The replaceable triple segmented knee cups are constructed with a polyurethane outer shell backed with a Nucleon Plasma protector for the optimum blend of impact protection, flexibility, and scratch resistance
- The self-centering knee cup and the strategically positioned upper and lower kneecap extensions ensure maximum coverage regardless of the flexion or extension angles
- The stable, slim-design four-point hinge system follows the articulation of the knee while the extension stops, which are available in a range from 0° to 30°, assist in setting the brace to the desired maximum opening angle
- The stainless-steel bushings in the four-point hinge system have an anti-oxidation treatment
- Nucleon Plasma is a viscoelastic material engineered from bio-based polymers and formed into a structure that is pliable in all directions while maintaining the ability to dissipate impact energies
- Lightweight and highly ventilated, the knee protector offers strong impact force dispersion and absorption while ensuring maximum coverage in all riding positions
- Construction
✓ What's Included
- (1) Alpinestars RK-1 Plasma Knee Braces
✓ Specs
- Brand: Alpinestars
- Category: Knee and Shin Protection
- Size Group: Adult
- Manufacturer part #: 6501725-13-LXL (varies by option)
- Condition: New
Sizing: Check the manufacturer size chart before ordering. Message us with your measurements and we will help you pick the right size.
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📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
