I'm after a 110bcd 50t or 52t chainring (or similar). I'm going to have a go at the unigames cycling, and need to kit out my only suitable road-type bicycle with something that would make it go with the other cyclists. I'm most probably not going to win anything, except maybe a prize for prettiest bicycle there.
I'll be riding a 1982 Raleigh Royal (It's actually a touring bicycle, but don't tell anyone!)