hi im building a surly pacer and have some questions on cranks... the specs for the chainring clearance on the surly specs page says 39/53t. does this mean that i need to stick with that exact ratio or thats just the biggest i can go?
so i need some advice.. i found a person on craigslist that is selling a sram rival crank for 75.00 and it looks in great condition and is fit for my bike, but it has about 700 miles on it. is this a lot for a crankset? is this a good deal? or do i not want a crankset with this many miles... advice please??
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