Part CW21013K01 Cylinder Works Big Bore Cylinder Kit Retail Price:Your Price$758.95 Pack Size:eaQty / Unit:1 Quantity -+ Add to Cart Quantity discounts available QuantityPrice DescriptionCylinder Works Big Bore Cylinder KitFits ModelsWR 250 F (20-24); YZ 250 F (19-24); YZ 250 FX (20-24)SpecsUses Vertex #24405Compression Ratio13.8:1Cylinder Diameter80 mmCylinder Kit TypeBig BoreDisplacement270 ccEngine Type4-CycleIncludesCylinder, Piston Kit, and Top-End Gasket KitSize Over Standard3.00mm