Originally Posted by
jet sanchEz
What length BB should I get for my GT? I was running an old mountain bike BB and it was fine but one of the cups was plastic and it broke on me last week. 103mm seems to be pretty standard but I have also seen 107mm ones out there, what do y'all use?
If you're using the same crank set, then get the same size BB.
One doesn't want to be fooling with chain-ring spacers;
Not too many anyway..
Maybe upgrade to a UN72 with a metal cup.
I'm pretty sure they have a metal cup.
I likez teh sealed BBs.