Hi, I'm kinda new to the MTB section of Bikeforums(typically over in SS/FG) I've posted a few times but figured I would say hi before I started asking a bunch of questions. What I want to know is what bottom bracket to get for my azonic steelhead that I am building up. I am running a truvativ crank(isoflow i think) with a bash guard on the outside(using the 32 middle ring) and a surly SS rear wheel with a shimano freewheel.
I had a 113mm BB installed but when I put the chain on it was rubbing the bashguard and making a bunch of noise. I figure I have to get a longer BB and I was wondering if a 115mm BB will push the drive side out 1mm, 2mm, or 0mm. The crank is square taper so I will be using a Shimano UN series BB and I know some of the lengths are asymmetric so I want to get some more opinions/answers before I spend the money to buy a new BB
Thanks in advance