Originally Posted by
JiveTurkey
It sounds like the entire "crank" was replaced, not just the chainrings. The crank manufacturer will determine the proper BB length. Get whatever BB you're supposed to. I'm surprised the LBS wouldn't have suggested selling you this extra item.
Yes, I'm pretty sure the entire crank was replaced. I am still learning about this stuff, so bear with me.
All the work was done under warranty. The lbs said the bike works, even though an inexperienced person like myself knows the chain shouldn't rub - and rub hard - the derailler cage.
The mechanic admitted that the chainline should probably be moved out.
It all comes down to the old saying; If you want something done right, then do it yourself.
And in all reality I do value the learning experience, although I feel the product I was sold is sub-standard.