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Old 08-04-2008, 04:09 AM
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datz510 datz510 is offline
Motorized Bicycle Elite Member
Join Date: May 2008
Location: Mesa, AZ
Posts: 290
Default Re: Happy Time Engine Gear Ratio

I believe it is approximately a 4:1 reduction from the crankshaft to the clutch shaft on the HT. Then whatever reduction off the drive sprocket to the wheel sprocket. I'll count tommorrow after work.

Lenny, to find the ratio, all you have to do is count the teeth of the large gear and small gear in the clutch housing, Then just divide the large gear tooth number by the small gear tooth number to give you the value of X as in "X:1". Works the same way for chain drives as well.
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