ALPINESTARS Faster-3 Rideknit® Shoes - Black/Gray/Red - US 9 251031911659 Stainless Exhaust Valve and Spring Kit 200/400 mm circumference

200/400 mm circumference

Standard Shorty Phantom Core Included for Aggressive but Controlled Sound (this new core design eliminates the need for a secondary Speakeasy or "db killer")

Comes with hex jam nut and O-rings

Front zipper outside pocket

Replaceable anatomical EVA footbed with Lycra lining on top for comfort

ALPINESTARS Faster-3 Rideknit® Shoes - Black/Gray/Red - US 9 251031911659 Stainless Exhaust Valve and Spring Kit 200/400 mm circumferenceUpper constructed from a superbly lightweight, durable and abrasion resistance microfiber Air ventilation details on lateral quarter with mesh openings for breathability Thermoplastic Polyurethane (TPU) ankle extended into lower lateral area Thermoplastic Rubber (TPR) slider detail on lateral toe box TPR heel counter design Asymmetric toe design Traditional lace closure system for an easy, secure and comfortable fit Tongue and collar padding provides