Jim: There is a process called electrical discharge machining which could be used to save the BB. It's meant for things like bolts broken off in engine blocks & similar expensive things. Were it my problem, I'd just buy a new BB. Quicker, simpler, & less problem sourcing. EDM is great if you break off a stud in your vintage sports car engine.
dougP On Thursday, August 6, 2015 at 8:30:03 PM UTC-7, Jim Bronson wrote: > > On a recent trail ride with my Redwood, I decided to stand and pedal > rather than downshift. This had the most unfortunate consequence of the > crank bolt shearing inside the bottom bracket. It also resulted in a > nearly 6 mile walk back to the house. > > My question is: can the rest of the bolt be extracted and the bottom > bracket re-used? Or should I just forget it and get a new bottom bracket. > It's not an expensive BB, Shimano UN-54 or similar. > > -- > Keep the metal side up and the rubber side down! > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
