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Old 12-05-2008, 10:59 PM
conradcliff's Avatar
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!

Here's a good least I think it is..SBP's kit only uses a 17 tooth sprocket on the input side of their kit and say:

you will see ratios between 5.8 to 1 and 2.7 to 1. This is like running a 58 tooth rear sprocket in the stock set up all the way down to a 27 tooth.
Why are their ratios so different? It seems like something is amiss.

Edit: Ohhh, I think I read somewhere that the china engines have an internal gear that right?

Last edited by conradcliff; 12-05-2008 at 11:02 PM.
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