Cylinder Works Standard 77mm Bore Cylinder for the 2014-2018 Yamaha YZ250F, 2015-2018 Yamaha WR250F, and 2015-2017 Yamaha YZ250FX is a direct bolt-on replacement requiring no re-plating. Designed to match OEM specifications, it features Nickel Silicon Carbide plating for durability and performance.

Features

• Direct bolt-on replacement with no re-plating required


• Nickel Silicon Carbide plated for extended lifespan


• Big bore cylinders do not require additional machine work (unless specified)


• Manufactured in the U.S.A.

Specifications

• Bore: 77mm

Cross-Reference OEM Part Numbers

• YAMAHA: 1SM-11311-00-00

Vehicle Fitments

• 2014 Yamaha YZ250F


• 2015 Yamaha YZ250F


• 2016 Yamaha YZ250F


• 2017 Yamaha YZ250F


• 2018 Yamaha YZ250F


• 2015 Yamaha WR250F


• 2016 Yamaha WR250F


• 2017 Yamaha WR250F


• 2018 Yamaha WR250F


• 2015 Yamaha YZ250FX


• 2016 Yamaha YZ250FX


• 2017 Yamaha YZ250FX


• 2018 Yamaha YZ250FX