cyfa2809":1yf1nnbh said:If your running a 68mm shell you may have to get a 73mm bb and spacers to compensate and possibly a slightly lnger axle.
I hadn't thought about this? I saw a thread on here today through a search that had a Cotic owner welding extra width onto the BB. I guess this was what it was for now...
Would I have to compensate the Chainline to the middle of the block at the back? Hence the spacing on the 68mm shell.