Top End

Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylindersCylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noiseNickel Silicon Carbide plated for long...

Billet Head Kit - High Altitude - Matryx 9R - Polaris 04-318-H-900 Polaris -- Patriot Boost RMK 850 KHAOS Matryx Slash 2.75" w/155" Track -- (2023, 2024); Polaris -- Patriot Boost Switchback 850 Assault 2" w/146" Track -- (2023); Polaris -- Patriot Boost...

Billet Head Kit - Low Altitude - Matryx 9R - Polaris 04-318-L-900 Polaris -- Patriot 9R Pro-RMK Slash 2.75" w/155" Track -- (2023, 2024); Polaris -- Patriot 9R Pro-RMK Slash 2.75" w/165" Track -- (2024, 2023); Polaris -- Patriot Boost Indy 850 VR1 1.35"...

The only safe way to maximize compression; the valve reliefs in the piston are purposely convex and match the geometry of the dishes in the valvesConversion to Black Diamond? stainless steel valves offers up to twice the life of the stock titanium...

Wossner Piston Kit - 79.95 Mm - Yamaha K8978Da-3 Yamaha -- YXZ 1000R -- (2016, 2022, 2018, 2021, 2017, 2019, 2020, 2023, 2024)

Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylindersCylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noiseNickel Silicon Carbide plated for long...

Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylindersCylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noiseNickel Silicon Carbide plated for long...

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 Suzuki -- LT-R...

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 Suzuki -- LT-Z...

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 Suzuki -- RM-Z...

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 Kawasaki -- KX...

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 Honda --...