• Sorry for bumming out in this thread, but as i'm still very new to this website I cannot post my own. I am rebuilding an old Peugeot Carbolite 103, and before I start collecting the parts to put it together, I need to find out what length bottom bracket (the axel part) I need to keep the chain line true. The width of the back fork is 120mm. Can anyone tell me what the ideal bb is for my bicycle? Oh, and i'm making it a one speed, not a fixie if that helps. Thanks in advance, future posters!

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