As low as $32.49/mo with or . (Pay in 4 interest-free payments)
ALPINESTARS SX-1 Plasma Knee Guards (Black/Red/Cool Gray) — S/M Built for off-road confidence, the ALPINESTARS SX-1 Plasma Knee Guards combine advanced plasma impact protection with a ventilated, semi-rigid frame for stable coverage and breathable comfort. Designed to move with you using the Dual Gear System (DGS) , these guards help promote natural knee articulation while staying securely positioned. Key Features Plasma knee protector embedded in a highly ventilated semi-rigid frame for enhanced impact absorption Dual Gear System (DGS) with integrated gear profiles for smooth hinge function and natural knee movement Constructed from a USDA Biobased viscoelastic material , molded for pliability and impact energy dissipation Dual density co-injected frame for supportive comfort and adaptability Scooped upper/lower extensions with soft polymer blend to help prevent pressure points from boot interference Strategically placed rigid & flexible shells engineered to adapt to a wide range of leg circumferences Patella System delivers full cup coverage and helps protect against handlebar strikes Perforated protector for airflow and heat management Slim, ergonomic design for a secure, low-bulk fit Dual strap closure with hook/loop and snap-fit buckles for easy on/off and personalized security Specifications Model: SX-1 Plasma Type: Knee Guard Size: S/M Color: Black/Red/Cool Gray Riding Style: ATV, UTV, Off-Road, Adventure Touring/Dual-Sport Includes: Pair Weight: 2.5 lbs Dimensions: 18" x 7.5" x 7"
Features a Plasma Knee Protector embedded into a highly ventilated semi-rigid frame construction for superior impact protection, while the integrated Dual Gear System (DGS) promotes the natural articulation of the knee
Key Features
Constructed from a USDA Biobased viscoelastic material, which is molded into a structure that is pliable in all directions while maintaining the ability to dissipate impact energy
Dual density co-injected frame for a supportive structure with unrivaled comfort and adaptability: Engineered with a scooped lower extension made from a soft polymeric blend to avoid any pressure points associated with a hard edge from occurring as a result of the boot pushing against the protector
The same scooped design is also applied to the upper extension, and this prevents the protector digging into the skin and causing discomfort while riding
Controlled Natural Movement — Dual Gear System (DGS), both the upper and lower frames have integrated gear profiles that ensure a smooth hinge function to promote the natural articulation of the knee
Features strategically positioned over-injected rigid and flexible shells to ensure the frames adapt to a wide variety of leg circumferences
The Patella System is engineered to offer full coverage of the knee cup regardless of the degree of extension while the rigid outer Patella System shell prevents injuries from handlebar strikes
Construction
Light-weight knee protection with extensive protective coverage
Upper and lower frames are constructed from a high performance polymer for optimized levels of flexibility and strength as well as excellent weight saving properties
The upper and lower frame’s integrated dual pivot hinge system follows the natural movement of the knee and keeps the protector well positioned while riding
Perforated knee protector offers high levels of ventilation
Frames feature a slim ergonomic design
Dual strap closure system features hook and loop with snap-fit buckles for easy in and out and a personalized, secure fit
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