Thread: If a 650c tribike uses 53/39, why does.....
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Old 03-28-11, 07:55 AM
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rhenning
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The wheels are smaller in 650c so you need to gear a bike higher to get the same speed. I have a Bike Friday and to get the same gear range as my 1974 Paramount I need to use a 46-60 on the front and a 11-28 in the rear. Roger
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