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  #16 (permalink)  
Old 08-03-2012, 05:50 AM
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Quote:
Originally Posted by axeychrome View Post
agreed on having to consider the primary too. looking at both vendor sites, appears the BDL's i used before were 47,72, while primo brute iv is 48,76. been playing with other tools out there and my own spreadsheet, but was trying to find somewhere that really tells a goal for the end ratio. with a primo belt drive and a 48 tooth rear sprocket, i was debating between a 22 and 23. yours shows i'd need closer to a 24. back to pondering a little...
I've posted this calculator before, it takes everything into consideration and I've found it to be very accurate...

Motorcycle gear/rpm/speed calculator
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  #17 (permalink)  
Old 08-03-2012, 10:04 AM
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Quote:
Originally Posted by Captain America View Post
I've posted this calculator before, it takes everything into consideration and I've found it to be very accurate...

Motorcycle gear/rpm/speed calculator
yeah, i was using that one and scooters. i like the one you posted showing all the rpm ranges, etc. but this new one is the first i've seen that says, "ok, this is the ratio you're looking for."
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