Cylinder Works 16-18 Yamaha WR 450 F 450cc Standard Bore Cylinder Kit 12.5:1 Comp. 97mm

This kit from Cylinder Works gives you everything you need to rebuild the top end of your 2016-2018 Yamaha WR 450 F. Inside the box, you'll find a cast aluminum Cylinder Works cylinder, a Vertex piston, and all the necessary gaskets to get your engine back to its original performance level. It’s a solid option for restoring horsepower and making sure your bike runs strong again, often at a better price than buying individual OEM parts.

The cylinder itself is built with a nickel silicon carbide (NSC) electroplate bore. This advanced plating technique allows for very tight tolerances, which means less friction as the piston moves up and down. That translates to improved efficiency and durability over time. Plus, the bore is precision diamond honed to exact dimensions, creating the perfect surface finish. This ensures your piston rings seal properly against the cylinder wall, which is crucial for both good compression and retaining oil where it needs to be for lubrication.

This standard bore kit is designed to bring your WR 450 F’s engine back to its factory specifications, making it a straightforward replacement for worn-out components. If you're looking to get your Yamaha running like new again, this kit has the essential parts to make it happen.