Motorcycle Piston Ring Set Rings Kit 39mm for 4 Stroke 50cc Horizontal Engine ATV Quad Bike 4 Wheeler Dune Buggy Dirt Bike Pit Bike Off Road Motorbike Go Kart Go Cart Moped. Piston Ring Diameter: 39mm compressed Please be carefully check the goods appearance, size, shape and then compare your original goods before ordering, thank you.
