WSM Piston Assembly - Yamaha - +.25 mm 010-872-04K Reblaze T-Shirt Not for use with stock

Not for use with stock muffler

Keeps mud from packing next to foot pegs

Fuji lock nuts

All GB Racing products are designed and manufactured in the UK -- including mold making in house at GB’s Hertfordshire UK facility

Leather patched logos for classic Alpinestars styling

WSM Piston Assembly - Yamaha - +.25 mm 010-872-04K Reblaze T-Shirt Not for use with stockQuality and construction that meets or exceeds OEM Feature improved E clip design Contain piston, rings, pin and clips Additional rings available separately Order one per cylinder Skirts have a nonabrasive, expansion retarding MOS2 coating to reduce heat and friction for added power and longevity MOS2 coating actually draws heat through piston walls and out the bottom Specially hardened tops add strength to ring grooves