ALPINESTARS SMX-6 v2 Vented Boots - Black/White/Red Fluorescent - US 7.5 / EU 41 2223017-1320-41 XC1 Guard Underwear lightweight

lightweight

FTEcu tuning or Yamaha Kit ECU)

the patented Dynamic Heel Compression Protection Shock Absorber which is integrated into a redesigned foot shell and the slimmer

It comes with 2 Lambda receiver bung for on track data logging or Dyno tuning and closed loop active tuning

Incorporates large aperture opening to promote easier entry and facilitate more convenient removal of boot

ALPINESTARS SMX-6 v2 Vented Boots - Black/White/Red Fluorescent - US 7.5 / EU 41 2223017-1320-41 XC1 Guard Underwear lightweightBoot upper incorporates an innovative front and rear bellows and rear calf zone for superior levels of flexibility Boot upper is constructed from microfiber for durability and abrasion resistance Ergonomic forefoot streamlining enables greater control of the bike's controls and provides a superior, wide ranging foot profile for excellent fit and comfort Thermoplastic Polyurethane (TPU) lateral ankle brace provides a biomechanical support between the