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chain stay length, gear ratio chart...

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Thepoolman:
haven't been on here in ages... what happened to the chain stay length/ gear ratio chart...

or what would the  length of  30-9 - 31-9     33-9 33-10 be?

trying to get slammed on a 13.75 frame.   but also need that man gear ratio.     I used to always run 27-9  but i need a much harder ratio.   

 Thanks!

montymitch:
http://www.vitalbmx.com/forums/General-BMX-Talk,2/Gear-Ratios-and-chain-stay-length,1282702

Thepoolman:
I saw that... but the only thing that helps me off that is 30/9.     the old bg chart had 31 and 33.   

Narcoleptic Insomniac:
http://eehouse.org/fixin/formfmu.php

dersou ousala:
31/9 and 33/9 would be good for 13.75. The other would sit at 13.875 or 13.625.
but damn... 33/9 thats a manly gear ratio

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