Originally Posted by
Sixty Fiver
A 1:1 crank to cog ratio (based on a 38 inch wheel diameter) is 40 gear inches... 119 gear inches would need a 3:1 ratio.
At a glance I am guessing that this bike has a gear range in the mid to high fifties... getting it up top speed would take a little work but once rolling I can imagine this bike rolling over everything.
The 28's on my roadster are like that.
That's what I get for applying the formula Sheldon posted.
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