Hoca 70cc 2-stroke Big Bore Kit 10mm Piston Pin, Part #169-57

Hoca Big Bore Cylinder set for 50cc 2-stroke Minarelli engines found on many popular 2-stroke full size scooters and ATVs such as Malaguti, Yamati, United Motors X-Speed, Aprilla, CPI, Benelli, Vento, Eton, Adly and many more. Wrist Pin Diameter: 10mm. Wrist Pin Length: 36.8mm. Displacement: 70cc. Fits 1PE40QMB Minarelli based engines with 10mm wrist pin. Piston Diameter: 47mm. Overall Height (cylinder): 87mm.