Maximum security U-lock for high theft areas. Extra thick 16mm hardened MAX-Performance steel shackle that resists cutters and leverage attacks. Patented pending hardened double deadbolt design gives additional protection against twist attacks. Highest security disc-style cylinder is pick and drill resistant. Flat key with integrated sliding dustcover protects the cylinder.

The Transit FlexFrame-U mounts quickly and easily and supports the transportation of the most common u-lock sizes. The Flex Frame-U fits bicycle frame tubing 25mm to 80mm whether round, oval, triangular or square shapes. The mounting system allows for 360 degree rotation providing the ability to micro-adjust the lock angle to better fit and align with a bike frames specific geometry.