Cylinder Works 07-15 Yamaha WR 450 F 450cc Standard Bore High Compression Cylinder Kit 13.5:1 Comp.

If you're looking to rebuild the top end of your 2007-2015 Yamaha WR 450 F and want to get more power out of your engine, this Cylinder Works high compression cylinder kit is a solid option. It's designed to bring your 450cc engine back to life with improved performance over stock, aiming for that 13.5:1 compression ratio to give you a noticeable boost in power.

This kit includes a cast aluminum cylinder from Cylinder Works, a Vertex piston, and all the necessary gaskets to get the job done. The cylinder itself features a nickel silicon carbide (NSC) electroplate bore. This advanced plating allows for tighter tolerances, which means less friction as the piston moves up and down. That reduced friction translates to better efficiency and extreme durability for the cylinder wall. Plus, the bore is precision diamond honed to exact dimensions and the right surface finish, which is crucial for ensuring your piston rings seal properly and the cylinder wall retains oil effectively. This attention to detail helps maintain consistent lubrication and optimal compression.

Compared to buying individual OEM parts, this kit offers a competitive price point while giving you a well-built component designed to restore your WR 450 F's horsepower and performance. It's a comprehensive package that simplifies the rebuilding process, providing the core components you need to get your bike running strong again.