Our Morini piston kits are all quality replacements manufactured in China, Taiwan and Japan. Motorcycle, Scooter and ATV piston kits are available for most models from 49cc to a few larger bikes. All piston kits come complete with piston rings, gudgeon pin & circlips. Oversized piston kits and piston rings are available for rebores & big bore cylinders. Before ordering a piston kit, please check your engine for signs of a rebore by the previous owner. Check the top of your piston for any markings where possible and if not too badly damaged, as any numbers usually indicate an oversize piston. There should be an arrow as well which will point to the direction the piston should face. Unless otherwise stated, all piston kits in this category are of standard size, same as factory fitted. If you need an oversized piston, please send an email and request availability.