WSM Top-End Rebuild Kit - Original Series - +0.50 mm 010-831-12 520 R4 ATV Z-Ring Chain Electronically developed and tested at

Electronically developed and tested at the track on the Graves team race bikes these stacks smooth power and increase horsepower across the entire power band of your R6 specifically effective in the mid-range

Interior is moisture-wicking for comfort

significantly enhancing the body's ability to stay cool

Hard knuckle covered by stretch spandex for high levels of impact protection Full synthetic suede palm for high levels of durability

WSM Top-End Rebuild Kit - Original Series - +0.50 mm 010-831-12 520 R4 ATV Z-Ring Chain Electronically developed and tested atTop quality piston kits Include pistons, rings, pins, clips, racing needle bearings, head and base gaskets, intake and exhaust gaskets