Kryptonite evolution mini 7 4 flex cablethis is a tough u lock and flexible cable set perfect for securing your bike in moderate to high crime areas it is made from 13mm hardened steel and the internal mechanism has been reinforced to provide increased security from different styles of attacks the benefits of a mini u lock are that once locked up there will be less space between your frame and the lock for a thiefs tools as a leader in action sports security and the creator of the origin