Just finished my first single speed project. To say it was a bit of a pain bottom bracket/chainline wise is an understatement. It is an old raleigh shopper type bike. The old red paint and whatever they used to use as an undercoat was a pig to remove too. Used to have a sturmey archer 3 speed hub. Took a bit of fettling but I've managed to bring it nearly up to date. I think in total it has cost around 250-300 quid to get to this point but the experience doing it was fantastic. Now on to the next.