Building up a bike from spares and I have two steel frames to choose from. Both require a 118mm axle BB and, as its more of a spare bike, neither will be built up at the same time. One has a 73mm BB shell, the other 68mm BB shell.
If I buy a 73mm/118mm BB (Probably Superstar ISIS), will it work ok on the 68mm shell with a 2.5mm spacer on the drive side?
Personally I can't see any problem and there looks like lots of thread on the Superstar BB so I'm not too worried about stripping the threads. Also the non-drive side cup has no lip so it should just be possible to just screw it in a bit further for the 68mm shell.
What have I missed?
