First Timer 80s Raleigh Conversion

It seems the cycling God that is Sheldon Brown actually rode fixed on a Biopace chainring with no sufficient troubles...

http://sheldonbrown.com/biopace.html

@Pauly1978: Based on the above link I'd utilise the setup you already have when fully built just to test and to see if it actually does work for you. Could save you a couple of £ if it works rather than dismissing the Biopace and buying a different chain ring without trying it out. Great thread/build.

Thanks for that mate. This certainly is a lot steeper learning curve than I anticipated, but I'm really enjoying it so far.

Today I have gone against 99% of people's advice so far on this thread and started turning my braze ons into braze offs. Pics to follow.