Engine

Kit includes replacement outer seal along with any O-rings, snap rings or lock washers required

Kit includes replacement outer seal along with any O-rings, snap rings or lock washers required

The radiator purge plug that comes stock on ’14-’17 CRF and ’16-’19 KXF radiators is plastic and can be susceptible to melting under extreme riding conditions. During installation you might also learn the hard way that plastic threads are easily cross...

Forged one piece valves for unmatched strengthCVD/CNI coated to reduce heat and frictionManufactured to exacting tolerances from highest grade materialAll valves sold each

WE RACE ON THE TRACK, NOT THE DYNO! Most camshaft designs are developed only on a dyno. Good camshaft designs not only increase power, they also improve throttle response. However, more power and better throttle response is a difficult design problem...

ForgedPrecision machinedCompatible with OEM keepers and retainersDesigned and manufactured to meet or exceed OEM specs and standards

Race proven worldwideImproves heat dissipationStronger than stockPrecision machined from billet T-6 aircraft quality aluminum to aerospace tolerances

Cast from the highest quality aluminumCovers come with the gasketsSeals perfectly to keep out dirt and moistureGives your bike the factory “WORKS” look

Feature Koyo and Nachi precision Japanese crank bearingsThe crankshaft seals feature a carbon/fluorocarbon pad on the seal lip and stainless steel garter springsReduces startup friction enhancing dry start performance and reducing crank pin wear

Kit includes replacement outer seal along with any O-rings, snap rings or lock washers required

Kit includes replacement outer seal along with any O-rings, snap rings or lock washers required

Kit includes replacement outer seal along with any O-rings, snap rings or lock washers required