Cylinder Works Yamaha YZ-F 450 Dirt Bike 2006-2009 98mm 478cc Big Bore Kit
Cylinder Works big bore kit Cylinder kit type: Big bore. Vertex big bore piston. WR 450 F (07-15) YZ-F450 (06-09). Includes: Cylinder, piston kit, & top-end gasket kit. Complete top end gasket set.