Cheapest available, it does have some reviews saying that the lock can be compromised but decide for yourself, I had one of these and sold it off with my bike, never had any problems i,e getting my bike nicked.
Versatile lock package containing U-lock and a braided steel flex, Bicycle security for moderate to high crime areas, with a standard length shackle.
13 mm hardened Kryptonium steel shackle, Patented deadbolt locking mechanism for extensive holding power. The Transit FlexFrame-U mounts quickly and easily and supports the transportation of the most common u-lock sizes. Kryptoflex braided steel cable for locking up 2.9 cm x 10.2 cm x 13 mm as a secondary deterrent.
High security disc style cylinder, Reinforced sleeve over crossbar and cylinder provides enhanced security protection
Reinforced internal housing increases resistance to twisting and leverage type attacks, Offset key location and overhead cam locking mechanism resists leverage attacks. Vinyl coated and weatherproof.
Patented, easy to use, high security Bent Foot design. Anti-Rattle bumpers keeps the shackle snug against the crossbar and prevent unnecessary noise. 2 keys. 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.