Over 2,000 bicycles are reported stolen every year in the Bristol area and less than 5% are recovered. Avon and Somerset Police have recently targeted the problem with two high profile raids on what they believe to be gangs of cycle thieves and a push to get cyclists to protect their bikes. In July five people were arrested and £50,000 of suspected stolen bikes were seized as part the year-long Operation Talisman.

Advice for cyclists on security from the police can be found in this useful summary Protect yourself from bike thieves this summer.