The Chicagoland Bicycle Federation is alerting bicyclists in Chicagoland to purchase an additional locking system if they own a U-lock designed lock, having learned that these locks are seriously compromised and are at risk of being easily picked. "U-lock" designs consist of heavy U-shaped pieces of steel meant to be much harder to saw or pry apart compared with a traditional padlock and chain. Some of the U-locks use an "axial pin tumbler" in which a tubular key is inserted into a circular keyhole.

The Chicagoland Bicycle Federation is urging bicyclists to purchase an additional locking system that does not utilize a circular keyhole. Cross locking is best. Bicyclists are advised to use two different types of locking devices: (1) a strong, U-shaped lock that can hold the frame and front wheel, and (2) a separate, thick cable (or chain) with a thick padlock that can secure both wheels and the frame. The Chicagoland Bicycle Federation suggests that bicyclists discuss the different locking systems with a local bicycle dealer and to contact the manufacturer of their U- lock.

Founded in 1985 to improve the bicycling environment in the seven-county Chicago region, The Chicago Bicylce Federation promotes bicycle safety, education, and facilities and encourages the use of the bicycle as an energy-efficient, economical and nonpolluting form of transportation and as a healthful and enjoyable form of recreation. For more information, visit www.biketraffic.org.