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...

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...

Cylinder Works Cylinder Kit - Standard Bore - 77.00 Mm - Yamaha Cw20013K01 Yamaha -- WR 250 F -- (2020, 2021, 2023, 2022); Yamaha -- YZ 250 FX -- (2022, 2020, 2021, 2023); Yamaha -- YZ 250 F -- (2020, 2021, 2023, 2019, 2022)

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...

Cylinder Works Cylinder Kit - High Compression - 85.00 Mm - Kawasaki Cw30014K03Hc Kawasaki -- KRT 750 Teryx4 4x4 -- (2013, 2012); Kawasaki -- KRT 750 Teryx4 EPS 4x4 -- (2013, 2012)

Ready-to-install, direct bolt-on cylinder requires no re-plating and looks virtually identical to the OEM cylindersNickel silicon carbide-plated for long lifeMade in the U.S.A. Polaris -- RZR S 1000 EPS 4x4 -- (2017, 2018, 2019, 2020); Polaris -- Ranger...

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...

Significantly increase performanceProvides more horsepower without sacrificing torque10.6:1 compression ratioSimple EFI tuning with three calibration downloads for Dynojet® Power Vision® tuner

Cylinder Works Cylinder - 66.40 Mm - Yahama 20009 Yamaha -- YZ 250 -- (2003, 2006, 2016, 2002, 2005, 2011, 2022, 1999, 2000, 2010, 2013, 2017, 2019, 2020, 2007, 2008, 2021, 2004, 2015, 2018, 2001, 2009, 2012, 2014, 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...

Kits contain all items to completely refresh and upgrade cylinder heads for popular Dirt/MX and Side x Side modelsCylinder Head Service Kits include the below components:Lightweight Racing Valve Spring kits with steel or titanium retainers, beehive or...