Cylinder Works Big Bore Cylinder Kit 470cc - 21005-K01 - 2010-2013 Yamaha YZ450F

Cylinder Works 21005-K01 470cc Big Bore Cylinder Kit for 2010-2013 Yamaha YZ450F Maximize Your YZ450F's Power Want to take your 2010-2013 Yamaha YZ450F's performance to the next level? The Cylinder Works 21005-K01 470cc Big Bore Cylinder Kit is the perfect solution. This OEM-quality kit provides a simple, bolt-on solution to increase your bike's displacement and deliver maximum power output. What's Included in the Box: Nickel Silicon Carbide plated cylinder Vertex piston kit (piston, rings, pin, and clips) Gasket kit Ready to Install This big bore kit requires no machining or replating, and the cylinder looks virtually identical to the OEM unit. Plus, the included Vertex piston is engineered for optimal performance, durability, and reduced engine noise. Important Specs: Compression Ratio: 12.5:1 Cylinder Diameter: 99 mm Displacement: 470 cc Size Over Standard Bore: 2.00mm Fits: 2010-2013 Yamaha YZ450F Cylinder Works - Made in the U.S.A. Don't settle for stock performance when you c