Part 11010-K03 Cylinder Works Big Bore Cylinder Kit Retail Price:Your Price$804.95 Pack Size:eaQty / Unit:1 Quantity -+ Add to Cart Quantity discounts available QuantityPrice DescriptionCylinder Works Big Bore Cylinder KitFits ModelsCRF 450 R (21-24); CRF 450 RWE (21-24); CRF 450 RX (21-24)SpecsUses Vertex #24198Compression Ratio13.5:1Cylinder Diameter99 mmCylinder Kit TypeBig BoreDisplacement480 ccEngine Type4-CycleIncludesCylinder, Piston Kit, & Top End Gasket KitSize Over Standard3.00mm