A great place to start is the Moreton Race Series over near Wool.
The Moreton TLI Cycle Race Series is a weekly Kermesse style handicapped race, running round a 2.5 mile lap on the open highway, with riders settting off in ability related groups every Thursday night during the summer months. Races last 1 hour + 1 lap, with riders setting off in ability related groups, to encourage exciting racing.
British Cycling Events
Find out about British Cycling road racing events here.