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Old 02-11-2011, 12:47 AM
Kristof's Avatar
Kristof Kristof is offline
Motorized Bicycle Elite Member
Join Date: Jan 2011
Location: Aliso Viejo, CA
Posts: 232
Default Re: Speed calculator

I am facing a dilemma. I have a direct drive clutch (10T) to a 36T axle sprocket with a 26 inch diameter wheel. The calculator says that at 2000 RPM (when clutch engages) I'll be going at 43 mph. I may have a bad setup. My engine does not have built in gear reduction.

I've read that people are switching over to 36T sprocket, so I bought one, but those people had those little 50cc engines with built in gear reduction. Now I don't know what to do, I've spent $80 on parts already.
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