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. Please see our Warranty & Returns Policy.
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Wrist Pin Length: 36.8mm
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Wrist Pin Diameter: 12mm
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Piston Diameter: 47mm
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Displacement: 70cc
Peugeot, Geely Model 18, TGB, Vento Zip R3i, Various unlisted makes/models, Diamo, Yamaha, Eton, 40QMB 50cc 2-stroke
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