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[{"make":"Honda","model":"CRF450R","years":[2002,2003,2004,2005,2006]}]
Restore peak power and durability with the KPMI Top End Service Kit — engineered for MX bikes and quads that demand race-ready performance and long-lasting components.
KPMI combines race-proven materials and precision machining to deliver components that reduce reciprocating mass while increasing valve durability. The kit is tailored for enthusiasts and race teams seeking reliable power, consistent compression, and extended service intervals.
What's in the box: Piston assembly (piston, rings, clips, pin), Cometic top-end gasket kit, Black Diamond™ stainless valves, dual spring titanium retainer spring kit, seals and hardware for a complete top-end rebuild.