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Loads of info online about filing down dropouts to widen, but my first thought was to do the opposite...Thanks in advance for any wisdom
Wisdom of crowds not good enough for you? 🙂
First thing to do is measure. The Concorde should be 9mm, dropouts can close up from having the bike set on them with no wheel in place. Make sure they're a clear 9mm all the way, otherwise file them until they are so that any 9mm wheel will fit.
Axles might be 3/8" if they're horrible cheap wheels, if they are then they're not going to fit 9mm dropouts and you shouldn't enlarge the dropouts to fit. In this case, your first thought is actually the correct third thought - file flats on the axles to make them 9mm. Make sure your clock the flats identically on both sides.
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gbj_tester
Hiya, have got some cheap single speed wheels for an old Concorde frame, and the axle is too big for the front dropouts. Loads of info online about filing down dropouts to widen, but my first thought was to do the opposite and file down the axle a bit (prob cos I care less about the cheap wheels). Think I only need to flatspot the threads on opposite sides.
Doesn't seem to be any info online about this which suggests that it would be a very bad idea....??
Thanks in advance for any wisdom