Originally Posted by
DeafLamb
I would also be interested in how you re-tap a bottom bracket to a smaller diameter????
I can only see it being possible if you fill the shell with metal and then do the tapping. But a normal bike shop wouldn't be able to do this, therefore most likely not an option.
"But a normal bike shop wouldn't be able to do this, therefore most likely not an option"
so if your LBS can't do it, it must be impossible? is that what your saying?
wow, you kids really should visit your local machine shop once in your lifetime and at least make an ATTEMPT at grasping different concepts
"nothing is impossible, except trying to convince the average person of this"
or just go to a
real bike shop like this one:
http://www.shawscycles.com/mission.html
it's called COUNTERBORING, then you sink in a sleeve (either fusor epoxy'd, or brazed in, then ream, face, and tap. (I learned this in high school, 35 years ago) and you only need to counterbore as far as the threads will go (68MM?)
expensive, due to the multiple operations, but certainly not impossible, nor even exotic by any stretch.
but don't even take my word for it, go and ask a machinist or call shaw's (tell them your mommy is rich first though!)
anyone want my original tange swiss BB?
