Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets Forged piston with molybdenum coating Special gasket kit Easy-to-follow step-by-step installation...

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason Gives the rider a choice of using standard gas with stock compression,...

Includes water pump gasket, clutch cover gasket, water pump shaft oil seals and washers Kit contents will vary slightly based on application Compatible...

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason Gives the rider a choice of using standard gas with stock compression,...

Superior-quality gasket sets from Athena Head gaskets feature rubber-coated spring steel construction Soft steel base gaskets are rubber coated Steel core materials feature high springback and...

Includes instructions and all necessary parts for installation Redirects fuel flow to improve throttle response Works with fixed or adjustable leak jets Eliminates 99% of all throttle...

Replacement rings for Athena Forged Pistons Compatible Vehicles Years Make Make Notes 2002-2008 Honda CRF450R 2005-2009 Honda CRF450X 2012-2014 Honda CRF450X 2006-2009 Honda TRX450ER...

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason Gives the rider a choice of using standard gas with stock compression,...

Includes water pump gasket, clutch cover gasket, water pump shaft oil seals and washers Kit contents will vary slightly based on application Compatible...

Superior-quality gasket sets from Athena Head gaskets feature rubber-coated spring steel construction Soft steel base gaskets are rubber coated Steel core materials feature high springback and...

High-quality, lightweight connecting rods Made with similar materials to the OEM component to ensure the same performance Superficial high-frequency treatment for higher resistance that reduces...

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason Gives the rider a choice of using standard gas with stock compression,...