ALPINESTARS SP-X BOA Boots - Black/Silver - EU 43 2222024-119-43 Screw-In Locking Skull Gas Cap Features a sleek custom design

Features a sleek custom design with a 14 mm bore size

Shimano E7000 Motor - The powerful Shimano E7000 motor allows for 3 power-assist modes and a walk mode

the GP Plus v4 has HRSF stretch inserts in the crotch

Made from proprietary material containing specific amounts of chrome

Stock oil pressure sending unit must be removed and oil pressure gauge must be ordered separately

ALPINESTARS SP-X BOA Boots - Black/Silver - EU 43 2222024-119-43 Screw-In Locking Skull Gas Cap Features a sleek custom designSP X boots are a sleek sport boot designed to fit under tech riding pants and provide superior walking capability Optimized for the sport and sport touring rider, the SP X are compact, mid height boots with premium levels of protection and comfort on and off the bike The upper is constructed from a combination of Rideknit material and knitted mesh, plus seamless thermo welded parts The lower features a TPU heel counter, toe slider, and the Alpinestars