This is going to be a classic. The Morvelo City Cross is really the right idea for a race. You can enter on your cyclocross bike or MTB, and they’re expecting a bit of a showdown between the two – who will win? There are plenty of age/ability categories to choose from, and if you don’t fancy that I’m pretty sure it will be a good spectator event too. The website is a good’un so head on over and enter.