This is a replacement piston kit for Puch mopeds. The kit includes: 38.00mm Piston 2 Rings Wrist Pin 2 Circlips You can verify the your piston size by reading the inscribed number on the top of the piston. If you have a 38 on your piston head select standard if you have a larger number then use oversized. Please select the size piston kit you need in the drop menu below. Availability: Usually ships the next business day PISTON KIT - PUCH MOPEDS 406.300Regular price: $99.95Sale price: $89.95Size: StandardOversized