I'm working with a peugeot UO-8 and my main goal here is trying to get the chainring as close to the frame as possible. As I will be putting a track wheel on an old bike and I find that is the key to a good CHAINLINE in any vintage conversion i've done. i'm just trying to figure out the math to get it to clear the frame without being to far considering the fittings I'm using. If anyone has converted a UO-8 and put in a new BB I would appreciate knowing what size spindle was used. I will get my wheels soon and before I get the BB so I can really get a good Idea of measurments