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Old 01-06-2015, 06:35 AM
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cannonball2 cannonball2 is offline
Motorized Bicycle Elite Member
Join Date: Oct 2010
Location: Colonial Coast USA.
Posts: 3,286
Default Re: 50cc GY6 on a Bicycle??

Heres a link to an atv engine. It has reverse which adds considerably to the gear box width. Notice the output shaft. It appears to have the same splines as the scoot wheel. There are 18 spline(as I remember) and 19. I bought a wrong splined wheel, mine are 19. The point of this is that more than likely the sprocket from an atv might fit the common scooter wheel shaft. Would be a simple matter to saw the shaft at the right point and drill and tap for a retaining bolt. A bike doesn't need the atv engine if this is true. Its more complex, heavier, and more $$. There are plenty of manuals for free on line I have both the 50 and 150cc loaded in my computer. Not sure how to attach them.
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