Bore: 80.00mmSizing: Standard BoreForged from high-silicon aluminum alloy for maximum strength and dependability..Innovative forging design and piston skirt provide maximum horsepower and torque..Wiseco High-Performance piston kits are priced with piston, rings, pins and circlips (unless noted otherwise)..Oversize pistons require cylinder sleeving..SPECIFICATIONS.Displacement: 743cc.Bore - Standard: 80.00mm.Bore - Actual: 80.00mm.Bore - Oversize: STD.Stroke: 74.00mm.Cylinders: 2.Piston Pin Diameter: 20.00mm.ITEM CONTENTS.3150KD - 3.150 Semi Keystone Ring Set.CW20 - ROUND WIRE PIN LOCKS 20MM (PAIR).S650 - PistonPin 20 x 65mm NonChromed TWThis item fits the following vehicle applications:compatible with Kawasaki JH750 750SS 1992-1995compatible with Kawasaki JH750 750ZXi 1995compatible with Kawasaki JH750 Super Sport XI 1993-1995compatible with Kawasaki JH750 XiR 1994compatible with Kawasaki JS750 750SX 1992-1995compatible with Kawasaki JT750 ST 1994-1995compatible with Kawasaki JT750 STS 1995