Insane Bicycle Mechanic
Join Date: Mar 2008
Location: other Vancouver
Mentioned: 4 Post(s)
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Originally Posted by yannis
Thanks a lot! Will an axle from a 67mm bottom bracket fit on a 68mm bottom bracket shell?
There's no such thing as a "67mm bottom bracket". The shell might be 67mm wide if it started at 68mm and then was machined a little over-enthusiastically, but a good mechanic would put a 1mm spacer in there to clean up the installation.
There's a lot of "ifs" in doing your suggested swap: cup thickness, spindle track width, spindle diameter, cup hole diameter, etc. It might work, it might not. It might work initially then fail quickly due to a poor bearing alignment. Only a good mechanic who knows the ins & outs of cup & cone bottom brackets can make the determination.
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