Engine

Active filters
Includes top and second compression rings plus three-piece oil control rings; supplies enough rings for two pistons for reliable sealing and oil control.
Complete replacement ring set with top and second compression rings plus three-piece oil control rings. Restores compression, controls oil, and improves oil economy. Includes enough rings for two pistons. Made in the USA.
Complete set of top, second, and three-piece oil control rings for two pistons. Barrel face top rings and Napier second rings provide improved sealing and heat transfer; three-piece Flex Vent oil rings ensure positive oil control. Made in the USA.
Complete replacement piston ring set with PVD coating: barrel face top rings, Napier second rings, and three‑piece flex vent oil control rings. Includes enough rings for two pistons.
Kit for mounting rotors to hubs; sturdy construction and made in the U.S.A.
Secure, precision fastener for motorcycle control assemblies. Made in the U.S.A.
Complete rotor-to-hub kit for single-disc applications. Two kits required for dual-disc setups.
Complete bolt kit for primary and derby cover service. Made in the U.S.A.
Durable fastener engineered for secure attachment of control assemblies; precision fit and corrosion resistance.
High-quality main bearing manufactured to original equipment manufacturer specifications for reliable performance.
Manufactured at leading OEM factories, mainly in Japan. Made to exact OEM specifications for reliable fit and performance.