Trying to read up on this confused me more than it helped.
If I want to use my current bottom bracket, what should I be concerned with regarding the new crankset?
My BB is 68x103 tapered square. Not sure it's relevant, but my current chainring is 46T with a 130 BCD(according to this chart).
Is it better to change the BB along with the crankset to be sure everything is compatible?
Either way, since my freewheel is involved in creating the chainline, are there measurements back there I need to be concerned with?
Because I want a chain guard, and they seem non-existant for 46/48T chainrings, I'm considering the Sugino XD2 w/guard. There's no BB compatibility info listed and I'm not sure what to ask.
Any info would be appreciated.