IMG 0587
scotto-

IMG 0587

with this 4G set-up I am able to run the stock cranks (aluminum) with the wide BB spindle that comes with the kit and the cranks barely clear the left side cover and the chain alignment is spot on. The short steel doglegged cranks that come with these kits are complete krap...heavy as all and shorter than short (as well as WIDE) at 150mm length. I custom fitted a 36T rear sprocket to the front in order to keep the stock chain guard intact. Mated to the 36T is a 16T freewheel on the rear for a fairly low gear ratio when peddling.
 

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Black Ale 49cc 4-stroke
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