I am converting an old Trek 660 frame to fixie. It takes a 68mm bottom bracket and I'm putting in an SKF bottom bracket (like this) with both a BMX profile racing 110mm 46t and redline BMX cranks 165mm (like this).
Now I talked to my friend at my local shop and he says these older frames run 110mm. I've looked on the internet and I believe he is correct in that I can use a 110mm bottom bracket and use spacers if need be to get the correct chainline. But I've also read that I may wanna run a 113mm bottom bracket.
I was wondering if there were any gurus out there that could help me out? I know that it's only a matter of 1.5mm but I just wanna get it right because the bottom bracket I'm getting is mailorder only and $129, so I'd like to limit my mistakes on this build.