WSM Piston Assembly - Yamaha - +.5 mm 010-872-05K Factory Classic Don T-Shirt Hydration Pack compatible with dedicated

Hydration Pack compatible with dedicated hydration hose routing for real-world practicality

Deep but quiet sound

When using any Graves performance system on the 15-19 R1 Flash Tune products are recommended to enhance the bikes performance everywhere

Direct OEM replacement parts designed to rebuild the A-arm to factory specification

The seat foam can easily be trimmed using a razor blade or shaped using a sanding pad

WSM Piston Assembly - Yamaha - +.5 mm 010-872-05K Factory Classic Don T-Shirt Hydration Pack compatible with dedicatedQuality 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