Bike Chain Lock MAGNUM 3040 — 8 mm thickness, 85 cm length, 5 coded keys + padlock

MAGNUM 3040 is a bicycle chain lock with 8 mm thick hardened links and an 85 cm overall length. Supplied with five coded keys and an additional padlock, this chain lock is intended to secure bicycles, scooters and other outdoor equipment. The construction balances visible theft deterrence with flexibility for locking to parking racks, poles or fixed objects in urban and semi-urban environments.

Advantages

The 8 mm hardened steel links provide increased resistance to cutting tools while the 85 cm length allows the chain to surround larger frames or secure multiple items together. Inclusion of five coded keys reduces the risk of key loss and makes sharing access straightforward. The separate padlock option adds flexibility when a different locking point or a spare lock is needed.

Suitable for

• Securing bicycles at bike racks and street parking
• Locking scooters, e-bikes or child ride-on vehicles
• Short-term outdoor storage of sports equipment and accessories
• Use in urban and campus environments where visible deterrence is required

Key specifications

• Chain thickness: 8 mm hardened steel links
• Overall length: 85 cm
• Includes: five coded keys and one separate padlock
• Designed for outdoor use with visible theft deterrence

How to use

Wrap the chain around the bicycle frame and a fixed anchor point such as a bike rack or pole, ensuring the chain passes through the frame and, where possible, the wheel to limit removal. Insert the padlock through the end links and secure using one of the coded keys supplied. Keep spare keys in a safe place and avoid bending the chain sharply when locking to preserve link integrity.

Usage recommendations

For best results, use the chain in combination with a secondary lock for longer-term or higher-risk parking, position the chain so it is off the ground where practical, and regularly inspect the links and locking mechanism for signs of corrosion or wear.