Features: 1. This anti-theft disc brake lock is designed for motorcycles and bicycles. Install it on the brake pads to ensure the safety of the motorcycle. 2. The appearance of a strong and invincible design will help anti-theft. 3. The mechanical lock core is rigorously designed, so it is very difficult to open technically. 4. Press clockwise to unlock. 5. Hardened metal body and 7mm lock cylinder provide the best protection for your bike. 6. It is extra difficult to be removed without keys as it attaches to the disk. Specifications of Lock: Uses: Bicycle, electric car, motorcycle disc brakes Color: Black, blue, red Lock groove depth: About 48mm Lock groove width: About 9mm Lock cylinder diameter: About 6mm Weight: 140 grams Lock size: 5.5x4.5x2.5cm Specifications of Reminder Rope: Diameter of wire rope: 4mm Cord length: 1.2m Rope stretch length Net weight: 35g Color: Black Blue Red Orange Yellow. (If you have color requirements, please remind us in the "Note"when you place order. )