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Help calculating differences with changing cogs
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05-15-15 | 07:09 PM
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dave42
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Jun 2013
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From:
E TN MTS
Bikes:
1989 TREK 400, Suntour accushift drivetrain. 80's Raleigh mtb all Suntour.
I like this one real good...
Sheldon Brown's Bicycle Gear Calculator
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