DescriptionReviews Description Standard bore kit. Std comp. 45mm. Includes: cylinder, piston, rings, and top-end gaskets. Compression Ratio (x:y): std Cylinder Diameter (mm): 45.00 Displacement (cc): 65.00 Piston Diameter (mm): 44.97 SizeOverStandard: 0 Reviews Be the first to review this item There are no reviews yet