Locks Kryptonite

13mm hardened Performance steel shackle resists cutting and leverage attacks - Anti-rattle bumpers reduce noise during transport - Sold Secure Bicycle Gold certified - Optional ATPO - GBP1000

System For Mounting U-Lock To Bike Fits 13mm & 16mm Diameter Locks Fits Frame Tube Sizes 25 to 80 mm Allows 360 Degree Lock Rotation