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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 09-14-10, 03:44 PM   #1
ClarkinHawaii 
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square taper BB, crank, frame fit?

If a certain square-taper BB works fine with a certain crankset on one frame, will that same combination work equally well on any other frame?

In other words, if I take a working sq-taper bb/crankset combo off one frame, can I expect it to work on another? Or does the frame itself have an effect?
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Old 09-14-10, 03:50 PM   #2
fietsbob 
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are both same width of chain line and chainstay? and British 68 wide shells and cable runs similar..
[a bike with over the bb cable run has a FD bottom contact with a 50t ring, but not a 52.]
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Old 09-14-10, 09:43 PM   #3
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Originally Posted by fietsbob View Post
are both same width of chain line and chainstay? and British 68 wide shells and cable runs similar..
[a bike with over the bb cable run has a FD bottom contact with a 50t ring, but not a 52.]
Same British standard BB, same cable routing. Brand new frame has not yet been built up. Width of chain line? Will be using same standard 10-speed Shimano cassette. So if I understand you correctly, the only thing that could throw me off is if the new chainstay is significantly wider or more radically curved outward than the old? Which could be a problem if the chainwheels get too close to the chainstays? The new chainstays appear to be about 2mm wider than the old. I think I'm OK. Thanks.
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