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Old 12-05-2008, 07:48 PM
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conradcliff conradcliff is offline
Motorized Bicycle Senior Member
Join Date: Oct 2008
Location: Tampa, Fla.
Posts: 67
Default Re: Need mental and ratio help! Please!

Originally Posted by Ghost0 View Post
There should be no difference in your ratio calculation do to the different sprocket types. This would only come into effect if you were trying to use a 6t #25 to a 40t #40. Then you have a problem. But a 40t/6t for a #25 chain is 6.6 to 1 and a 40t/6t for a #40 chain is still 6.6 to 1 so don't let the different sprocket/chain types mess with you.
Thanks for the reply..that would all be well and good if I didn't have two different sprocket types on the same jackshaft. So the ratio calculation for the jackshaft is where the trouble is and that's why I need to figure out what the size of the input sprocket needs to be.

Thanks again though.
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