Hoca 70cc 2-stroke Big Bore Kit - 12mm Piston Pin
Hoca 47mm Big Bore Head Kit for 50cc 2-stroke 40QMB, E40QMB, 1E40QMB and 1PE40QMB Minarelli engines. These engines are commonly found on many popular 2-stroke full-size scooters and ATVs such as Yamaha, Malaguti, Yamati, United Motors X-Speed, Aprilla, CPI, Benelli, Vento, Eton, Adly, Geely and many more. Includes cylinder head. Wrist Pin Length: 36.8mm Wrist Pin Diameter: 12mm Piston Diameter: 47mm Displacement: 70cc