08-08-2006, 09:16 PM
Generally, 1 tooth on the CB is about 5-6 teeth on the Spur.
Take the spur tooth count, divided by the CB tooth count. This will give you a Ratio. Then you can try different numbers to see what will give the desired ratio.
Example...
46 tooth spur divided by 15 tooth CB gives a 3.066 ratio.
From what we are suggesting, 46 t Spur divided by 13 t CB would be a 3.538 ratio.
If you go with a 48t spur and 15t Clutch it will only give a 3.2 ratio. In order to get a comparable ratio, you will need a 53t Spur with the 15t CB, which will give a 3.533 ratio.
I think a 53t spur would be too big to fit the chassis.
Take the spur tooth count, divided by the CB tooth count. This will give you a Ratio. Then you can try different numbers to see what will give the desired ratio.
Example...
46 tooth spur divided by 15 tooth CB gives a 3.066 ratio.
From what we are suggesting, 46 t Spur divided by 13 t CB would be a 3.538 ratio.
If you go with a 48t spur and 15t Clutch it will only give a 3.2 ratio. In order to get a comparable ratio, you will need a 53t Spur with the 15t CB, which will give a 3.533 ratio.
I think a 53t spur would be too big to fit the chassis.
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