I’ve recently got my hands on an old steel frame which I’ve decided to turn into a bit of a build project. I’ll be honest though, whilst I’ve ridden for many years, beyond basic maintenance my knowledge of bike mechanics is almost zero :(
The main issue i that I have been unable to identify the make of the Frame. It’s had several re-paints and when I finally got it back to bare steel the only ID number (On the down tube) doesn’t seem to adhere to any of the manufacturers standards. This makes getting the correct parts a little difficult
My first task is to source and fit a bottom bracket. The shell itself is 34 MM Diameter by 68MM wide and is threaded so will, in theory, take a standard threaded BB i guess. But how do I know which thread do go for? Is there an easy way to distinguish between British and Standard thread?
Next up is, what’s the optimum spindle length? I’m planning to make the bike Single Speed and have replaced the Rear drops with Track Fork ends (I adjusted the spacing to 120MM between the frame to take a standard SS or maybe a flip flop hub) but haven't fitted anything yet so not sure how far this will offset from the frame.
Any (low tech) advice people are willing to offer would be gratefully received