Destroyer of Wheels
Join Date: May 2006
Location: Creating some FA-Qs
Bikes: Nishiki Sport, Downtube IXNS, 1950's MMB3 Russian Folding Bike, MTB
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New pedals won't fit older bike - what can be done?
So I bought folding pedals for my vintage russian folding bike. Took off the old pedal, tried to screw in the new one and it wouldn't thread in nicely by hand, seems to be ever so slightly annoyingly larger then the hole. By sight they seem to be the same thickness and thread - though I'm not an expert. I bought another pair for my regular mtb and they fit fine. Aren't pedals universal? I think I have a few options if I want to keep the folding pedals (which I do):
a) Murphy's Law - if it's stuck force it. If it breaks it needed replacement anyway.
Problem here is that the crank is older, not sure I really want to start the possible slippery slope of replacing one part to get another to start. If they thread in then problem solved, if not then I could just go to option b....
b) New Crank shaft
How much do these cost? It seems that this crank shaft screws onto where it goes into the bottom bracket (if this isn't clear I can post some pics) so replacing it shouldn't be a problem PROVIDING I can find a replacement. Again, I'm hesitant to take a step down that slippery slope and wind up replacing the bb too - I've spent a little too much money already and would like to temporarily stop the bleeding and enjoy it for a few months
c) Have a machinist drill out and/or retap/rethread the hole in the crank shaft
As long as the the pedal can be threaded into the crank shaft it should be strong enough, right? One lbs isn't equiped to retap the hole - anyone know a good and cheap machinist in the NYC area?
Let me know what you think, thanks! (Also if this should go to vintage section I apologize - figured it was more mechanical then vintage in topic).