ALPINESTARS Supertech V Boots - Black/Fluo Red/White - US 11.5 / EU 46 2220121-124-46 Yamaha Crest T-Shirt Designed with a high front

Designed with a high front to keep mud from building up on the engine

Can mounts directly to the motorcycle by using a stealth integrated mount point built into the silencer

Horizontal flexion grooves for an adaptive fit in different riding positions

Ideal engine part to complete Koso's big bore kit Unique four-valve design increases air flow and performance Provides more power and torque Features a forged piston

ALPINESTARS Supertech V Boots - Black/Fluo Red/White - US 11.5 / EU 46 2220121-124-46 Yamaha Crest T-Shirt Designed with a high frontAlmost every component of the Supertech R Boot, Alpinestars definitive racing boot as worn by a roster of champions past and present, has undergone a rigorous program of upgrades to sharpen its performance features even further. Featuring innovations derived using feedback from Alpinestars involvement in top flight racing, key elements include a newly redesigned front flex area, a redesigned rear protection and the performance of this boot to a new