Originally Posted by
kidamnesiac
nice post mander
stupid question-when doing a conversion, is it safe to assume that the original bottom bracket size for the double chain wheel/cassette will be the appropriate size for the fixed final product?
Often the inside chain ring on a road double will give you a good chain line with a 42mm hub. Check out Sheldon's BB database linked above. Also, the Bob's Garage videos on FGG give a pretty good tutorial with pictures on how to measure and adjust chain line.