There seems to have been a bit of a resurgence in the availability of 27" tyres and I'd like to put something faster on my 1982 Raleigh than its current Michelins for fitness/training runs.
In reply to Schmiken: Thanks for the warning! I could accommodate 700c on the frame, but I'd probably be better putting the money into a whole new bike rather than a new wheelset at this stage.