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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 11-10-10, 07:59 AM   #1
Psycolist
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changing frames

I am in the process of getting a replacement frame and wondered if anyone can tell me about bottom bracket compatability. I intend to put all my current equipment all onto a new frame and wondered if the bottom bracket is specific to my crank set or to my frame. I am making sure that seat post , steerer tube , dropout , and BB thread size are all ok but cant seem to find out if my new frame will want a different length of BB or wether it is particular to my crank set. Any help would be much appreciated. Nick
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Old 11-10-10, 08:43 AM   #2
bradtx
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Nick, Just mock up the BB and RHS crankset on the new frame to check for chainline and chainring/chainstay clearance. If a change is needed you'll know exactly by how much.

Brad

Last edited by bradtx; 11-10-10 at 08:43 AM. Reason: sp
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Old 11-10-10, 08:55 AM   #3
goatalope
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There are a few different bottom bracket standards. It'd be helpful to know which frame you're going from and to.
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