2009-07-04 Sat - Dunwich Dynamo 2009

I would like to do this but I have never ridden that type of distance before. Im going to have to do it fixed as I only have one bike. What sort of training should I do?

Hobo, the distance is hardly the biggest problem--most moderately fit people can do this, albeit perhaps not that fast. Think also about night riding if you haven't done it before. The Southwark Cyclists FAQ gives some pointers.