78mm big bore cylinder rebuild kit designed for Kawasaki KLX250 and KLX300 models. This kit increases the bore size from the original 72mm to 78mm, enhancing engine performance without requiring modifications. It includes all necessary components for a complete top-end rebuild, providing a direct OEM replacement that meets or exceeds original quality standards. Features Direct OEM replacement standards Increases bore size from 72mm to 78mm for improved engine performance No modifications required for installation Includes all necessary components for a complete rebuild Specifications Part Number: 56-K9054.78.KIT Bore Size: 78mm Includes cylinder, piston kit, and gasket set Included Items (1) Cylinder (1) Piston rings, pin, and clips set (1) Gasket set (2 pieces) Cross-Reference OEM Part Numbers 11005-0656 11005-0655 11005-1817 11005-1983 11005-0112 Vehicle Fitments 1993-2018 Kawasaki KLX250 1994-1996 Kawasaki KLX250R 2005-2014 Kawasaki KLX250S 2009-2010 Kawasaki KLX250SF 1996-2007 Kawasaki KLX300 1997-2007 Kawasaki KLX300R