Alpinestars Bionic Plus Youth Knee Protectors fuel-air-reeds-reed-valves-reed-valves 1993 Yamaha EX570SX Exciter II

1993 Yamaha EX570SX Exciter II SX

2023 Honda Grom ABS

2013-2014 Arctic Cat TRV 550 XT

upper ring and piston crown

Alpinestars Bionic Plus Youth Knee Protectors fuel-air-reeds-reed-valves-reed-valves 1993 Yamaha EX570SX Exciter IIKnee protector EN 1621 1: 2012 Level 1. CE certified protection systems utilizing robust protective structures and impact absorption padding. Highly ergonomic design improves streamlining while providing crucial protection for MX and off road riding. Asymmetrical and lightweight ergonomic panel construction offers extended protection surfaces to reduce rotation. Double strap closure system on knee protectors specially designed to offer more comfort