ALPINESTARS SMX-S Boots - Black/White - US 4 / EU 37 2223517-12-37 Scorpion Hub Puller 2-stroke kits include O-rings

2-stroke kits include O-rings

backlit digital display Allows more precise tuning Programmable warning alerts rider of too lean or too rich ratio Displays ratio between 10

IPD (in-mold plastic decals) and DGP(durable gloss propylene)

Alpinestars Transversal Protection Frame

back yoke and knee for optimal freedom of movement

ALPINESTARS SMX-S Boots - Black/White - US 4 / EU 37 2223517-12-37 Scorpion Hub Puller 2-stroke kits include O-ringsDurable microfiber upper construction that has superb flexibility and a comfortable feel Ergonomic new forefront boot shape is streamlined to better control and feel of the motorcycle controls Thermoplastic Polyurethane (TPU) shin plate protector is race developed for superior impact and abrasion resistance Lateral Thermoplastic Rubbery (TPR) injected ankle support construction provides superior comfort and impact resistance TPU double density ankle