U-lock MASTERLOCK hardened steel 10 cm wide with 20 cm shackle length, black

Hardened steel U-lock by MASTERLOCK with a 10 cm wide body and a 20 cm shackle length in black. Designed to secure bicycles and other small vehicles, this U-shaped padlock offers resistance to cutting and prying due to its hardened steel construction. The compact dimensions make it suitable for urban and residential use where a small, strong lock is required. A protective vinyl coating helps protect frames from scratches, and a carrier bracket is included for convenient transport.

Advantages

The U-lock features a hardened steel body that increases resistance to cutting, sawing and prying. A double-locking shackle provides enhanced pry resistance, while the integrated pin tumbler keyed locking mechanism improves protection against picking. The protective vinyl coating reduces the risk of damage to bicycle frames and painted surfaces. A carrier bracket is included to simplify carrying and mounting during transport.

Suitable for

• Securing bicycles in urban environments
• Locking children’s ride-on toys and small vehicles
• Short-term locking of scooters and e-bikes in residential areas
• Use where a compact, high-strength lock is preferred

Key specifications

• Body material: hardened steel
• Body width: 10 cm
• Shackle length: 20 cm
• Finish/color: black with protective vinyl coating
• Locking mechanism: pin tumbler keyed lock
• Shackle locking: double-locking shackle
• Includes: carrier bracket for transport

How to use

Position the U-shaped shackle around the bicycle frame and a fixed anchor point such as a bike rack or sturdy post, then insert the shackle into the lock body until it engages. Turn the key to lock and remove the key. To unlock, insert the key into the cylinder, turn to release the shackle, and remove the lock. Use the included carrier bracket to mount the lock to your bike for transport following the bracket’s attachment instructions.

Usage recommendations

For best security, pass the shackle through the frame and both wheels when possible and secure to an immovable object. Store keys in a secure place and consider using additional locking methods for prolonged unattended parking or high-risk locations.