Part 11010-K04 Cylinder Works Big Bore Cylinder Kit Retail Price:Your Price$842.95 In Stock Pack Size:eaQty / Unit:1 Quantity -+ Add to Cart Quantity discounts available QuantityPrice DescriptionCylinder Works Big Bore Cylinder KitFits ModelsCRF 450 L (19-20); CRF 450 RL (21-25); CRF 450 X (19-25)SpecsCompression Ratio12.0:1Cylinder Diameter99 mmCylinder Kit TypeBig BoreDisplacement480 ccEngine Type4-CycleIncludesCylinder, Piston Kit & Top End Gasket KitSize Over Standard3.00mm