bottom bracket threading questions???
Ok, I have some questions regarding BB threading. I know that in the old days there were several different threads used bike bike makers. English, Swiss, French, etc. Is there a standard thread that is now used by most, if not all manufacturers? Can threading be changed and if so how? Also, as far as threading goes, I assume we are talking about the threads that the cups screw into. Is this correct?
Reason why I ask is that I have an old Peugeot that I am building up. I want to replace the old cottered crank with an alloy unit. Seems like it shouldn't be that hard, but then you get into all the threading issues. This bike is an 81 model, so I think it has Swiss threading. I will confirm this if I ever manage to get the old cotters out. LOL! If it is Swiss threading (or french) it seems like I am severely limited as to what cranks and bottom brackets I have available to use.
Hope some of this makes sense to everyone. I have just never messed with replacing cranks and/or BB before, so I am kind of confused.