This classic lock is strong as everybody can see and feel. The thick u-shaped steel is super strong, but has a PVC coating to protect your frame against scratching. To attach the lock to your bike when you are not using it, there is a mounting bracket included. No thief will even try to steal your bike when they encounter this lock.Safety level:- Level 5-8: Locks with this security level are suitable for areas with a low to average theft risk. These locks are also suitable for bicycles in the low-price segment or as lightweight secondary lock.Features:- Thick hardened steel U-lock with strong adjustable bracket- 12 mm thick hardened steel U-shackle- Soft coating protects your bicycle´s paint from chips and scratches- Rotational cover prevents dust and dirt from entering your lock through the keyhole- Bracket for mounting on your bike included- Secure the bike on anything with a maximum diameter of 116 mmSpecifications:- Sizes: 14mm - Weight: 900g- Safety level: 8- Volume (ml): 645- Locking system: Key- Width (mm): 170- Keys included: 3- Material: Hardened steel- Thickness Lock (mm): 14- Mounting bracket: Yes- Protection sleeve: Yes- Lock type: D-lock (U-lock)- Length (mm): 253Technology:Easy storage with the bracket:- This U-lock comes with a smart mounting bracket. The bracket allows you to store the lock easily on your bicycle almost anywhere and take the lock with you wherever you go on your bike. You just click the lock onto the bracket attached to your bicycle frame for secure and effortless storage. This ensures you´ll never forget your lock when you get out on your bike.