Top End

Piston Kit - 79.96 Mm - Suzuki Rm-Z250 23925B Suzuki -- RM-Z 250 -- (2022, 2018, 2020, 2019, 2021, 2017, 2023, 2024, 2014, 2015, 2016, 2013)

Piston Kit - 76.95 Mm - Kawasaki Kx250F 23647A Kawasaki -- KX 250 F -- (2013, 2012, 2014, 2011)

All pistons are heat-treated with a T-5 hardening and tempering cycleAll piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston lifeForged High Compression pistons improve power and torque...

2-stoke pistons include piston, rings, pin and clipsPiston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance4032 T6 Forged Aluminum AlloyGerman Engineered from Wossner?s own designs and...

Kits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves, H.T. Steel valve keepers and valve stem seals (where applicable) for engine applications listedAll valves are impregnated by a special...

Athena Piston Kit With Gaskets - 95.98 Mm - Kx450F P5F0960068007B Kawasaki -- KX 450 F -- (2020, 2019)

Machined from 2618-T6 high-tensile forged aluminumDome/dish features smooth flowing radii; requires no deburring or preparationSpecifically engineered for extreme applications including professional competitionPro Series pistons available for select...

2-stoke pistons include piston, rings, pin and clipsPiston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance4032 T6 Forged Aluminum AlloyGerman Engineered from Wossner?s own designs and...

2-stoke pistons include piston, rings, pin and clipsPiston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance4032 T6 Forged Aluminum AlloyGerman Engineered from Wossner?s own designs and...

Kits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves, H.T. Steel valve keepers and valve stem seals (where applicable) for engine applications listedAll valves are impregnated by a special...

Kits include aluminum cylinder with nickel-carbide coating designed with larger water jacketsForged piston with molybdenum coatingSpecial gasket kitEasy-to-follow step-by-step installation instructionsAll are bolt-on; no machining required Yamaha -- BW...

Kits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves, H.T. Steel valve keepers and valve stem seals (where applicable) for engine applications listedAll valves are impregnated by a special...