- 70cc 2-stroke big bore kit for chinese scooters.
- This kit has a 47mm cylinder bore and 10mm wrist pin.
- Includes wrist pin bearing.
- 47mm Big Bore Head Kit for 50cc 2-stroke 40QMB, E40QMB, 1E40QMB AND 1PE40QMB Minarelli engines to increase drive power.
- Please make sure to compare your old parts to the photos provided.
- Also this kit for 100mm wrist pin.
- Type: Big Bore Rebuild Kit
- Condition: Brand New
- Wrist Pin Length: 36.8mm
- Wrist Pin Diameter: 10mm
- Piston Diameter: 47mm
- Displacement: 70cc
1 x Master cylinder
1 x Cylinder head
1 kit x Piston ring
1 x Wrist pin
2 x Clamp ring
1 x Piston
2 x Paper gasket
1 x Rolling pin bearing
Fits most Chinese scooters with jog / Minarelli / Yamaha clone motors
Fits Jonway, Jmstar, Roketa, Sunl, Yamaha and many others
Disclaimer: Nicecnc Store parts are not sponsored or endorsed by, or affiliated with the brands its parts fit, including Harley-Davidson，KTM, Duke，Aprilia，Triumph，Husqvarna, Honda, Yamaha, Kawasaki, Suzuki, Beta, GASGAS, Sherco, Polaris, Can-am, Arctic Cat, Ski-Doo，Piaggio, Ducati, MV Agusta, Moto Guzzi, Benelli, Buell, CF-Moto, Enfield, Hyosung, Indian,etc.