Well I took someone's good advice from here and bought a narrower bottom bracket, that worked well and now the cranks are where they should be. However I now have a different problem. There is no way that I can see to get the front derailer to shift into the big ring, it will only go far enough to make the chain rub but not catch. I have taken the limit screws out, so that isn't the problem, I've played around with the mounting for the derailer, moving it up and down obviously dosen't help. What is wrong with it, do I need a new derailer that has a wider shift range or what?