Cylinder Works 16-18 WR 450 F/10-17 YZ 450 F/16-18 YZ 450 FX Standard Bore Cylinder

OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.

• Nickel silicon carbide (NSC) electroplate bore which allows for tighter tolerances, lower friction and extreme durability
• Precision diamoned honed to exact dimensions and proper surface finish to ensure ring seal and oil retention