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Alpinestars SX-1 Plasma Knee Protectors, Motocross Knee Protection, Black and Red, featuring semi-rigid ventilated frames, red inner padding, white Alpinestars logos on the kneecap, and a dual pivot hinge design for off-road performance
Alpinestars SX-1 Plasma Knee Protector, Motocross Knee Guard, Black and Red, inner view highlighting the red Nucleon PLASMA insert and dual strap closure system, engineered for off-road performance.

SX-1 Plasma Knee Protector

motocross

Regular price
$129.95
Size
Size guide
Color Black/Red/Cool Gray
SX-1 Plasma Knee Protector
In stock, usually ships in 24-48 hours.

Truck Free shipping above $99

Return 30 days for exchanges & returns

Expertly designed for off-road performance, the SX-1 PLASMA Knee Protector features a highly ventilated semi-rigid frame integrated with Nucleon PLASMA viscoelastic protection. The Dual Gear System (DGS) ensures smooth hinge function to support natural knee articulation while dissipating impact energy. This CE Level 2 certified protector delivers a secure, adaptive fit with a dual strap closure system for maximum comfort and stability.

Note: Sold as a pair.
  • Nucleon PLASMA Protection: USDA Certified Biobased viscoelastic material offers multi-directional pliability and a custom fit, effectively dissipating impact energy.
  • Dual Density Co-Injected Frame: Engineered with scooped upper and lower extensions to eliminate pressure points and prevent the protector from digging into the skin.
  • Dual Gear System (DGS): Integrated gear profiles in the upper and lower frames ensure smooth hinge function and promote natural knee articulation.
  • Ergonomic Adaptive Fit: Sculpted frames feature strategically positioned rigid and flexible over-injected shells to accommodate a wide range of leg sizes securely.
  • Patella System Protection: Engineered to provide full coverage of the knee cup at all degrees of extension, with a rigid outer shell to prevent injuries from handlebar strikes.
  • Lightweight knee protection with extensive protective coverage.
  • Upper and lower frames are constructed from high-performance polymer for optimized flexibility and strength.
  • Integrated dual pivot hinge system follows natural knee movement and maintains protector positioning while riding.
  • Slim ergonomic frame design for a low-profile fit.
  • Dual strap closure system with hook-and-loop and snap-fit buckles for a personalized, secure fit.
  • According to European statutory law, the CE mark is a conformity requirement for the marketing of this product. The following standards apply:
  • Knee protector: EN 1621-1:2012 LEVEL 2
EAN 8059347566214
SKU 6500326-1498-S/M
Complete the look
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