Big Bore Cylinder Kit Yz 250 21009-K01

Big Bore Cylinder Kit

Cylinder kit includes matching Vertex pistons to ensure longevity, performance and reduced engine noise

Cylinders have a nickel silicon carbide cylinder sleeve

Look virtually identical to OEM cylinders

Kit includes cylinder, pistons, rings, pin, clips and gaskets

Made in the USA

Cylinder does not require machine work (unless noted).

Kit Includes: • Cylinder • Cylinder Head • Power Valve Kit • Piston Kit • Top-End Gasket Kit • Wrist Pin Bearing.