Kryptonite Standard U-Lock & Kryptoflex CableThe Kryptonite Standard U-Lock is an affordable U lock that features a 12.7mm diameter hardened steel shackle, which deters thieves from accessing your bike to steal. It is equipped with a Higher Security Disc-style cylinder locking mechanism to reduce the chances of a thief breaking the lock significantly and dramatically resists twisting attacks. Convenient, Robust SecurityFor travelling convenience, this lock comes equipped with a Flexframe-U Bracket, which makes mounting the lock to your bike for transport simple and secure; it also features a robust vinyl coating to ensure no scrapes or damage to your frame can occur. This lock is also supplied with a Kryptoflex cable, which enables additional security by looping through bike components and back to the main lock.Features:  Material: Shackle: Steel; Keys: Stainless Steel; Coating: Vinyl  Dimensions: 10.2cm x 22.9cm  Shackle Diameter: 12.7mm  Keys: 2x ergonomic design  Mount Bracket: Flexframe-U Bracket  Cylinder: Higher Security Disc-style  Dead Bolt: Hardened Double Deadbolt design  Security Rating: Sold Secure Gold  Weight: 1.32kgBuy Kryptonite Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.