DUNLOP Chain Bicycle Lock with Combination (Red) — Dunlop branded bike chain lock, keyless combination security

The DUNLOP Chain Bicycle Lock with Combination (Red) is a keyless chain lock designed to secure bicycles to fixed objects such as racks, posts or bike stands. It uses an integrated numeric combination mechanism so no key is required, and the flexible metal chain is covered in a red protective sleeve to reduce paint damage and visible wear. Intended for everyday urban and recreational use, this Dunlop-branded chain lock combines flexibility and moderate deterrence for short-term parking and casual stops.

Advantages

The lock provides keyless operation through an adjustable numeric combination, eliminating the need to carry or replace keys. Its flexible chain construction allows users to loop the lock around various shapes and objects, helping secure frames and wheels. The red protective sleeve reduces scratching and protects the chain from weather exposure while making the lock more visible. The simple mechanism is straightforward to set and reset within the limits of the built-in combination system.

Suitable for

• Securing bicycles during short urban stops or errands
• Locking bikes at parks, schoolyards, or recreational areas
• Use with children’s bikes and lightweight adult bicycles
• Situations where flexible chain routing is needed to reach fixed anchor points

When it may not be suitable

This chain lock is designed for everyday and recreational use and provides moderate security. It may not be adequate for high-risk areas or for leaving a bicycle unattended for long periods, where high-security hardened steel locks or alarmed locking systems are preferable. It is also not intended as a replacement for heavy-duty professional security solutions.

Key specifications

• Lock type: chain lock with numeric combination
• Finish: protective red sleeve covering the chain
• Operation: keyless combination mechanism
• Intended use: urban and recreational bicycle security
• Flexibility: chain design allows routing around irregular anchor points

How to use

Wrap the chain around the bicycle frame and a fixed anchor such as a rack or post, ensuring the chain passes through the frame and, if possible, a wheel. Align the combination dials to the current code to open or lock the mechanism. To set or change the combination, follow the manufacturer’s instructions supplied with the product; typically this involves opening the lock at the factory code, rotating a reset lever or pin and entering the new code. Keep the chosen combination in a secure place separate from the bicycle.

What to consider before purchase

• Level of security required for typical parking locations
• Length and flexibility needed to reach anchor points where you park
• Whether a keyless combination is preferred over keyed locks
• Visibility and finish — the red sleeve protects paint but does not indicate security level

Usage recommendations

For everyday urban use, thread the chain through the bike frame and at least one wheel before securing to a solid anchor. Regularly check the combination mechanism and sleeve for wear, and avoid leaving the bicycle in high-crime or unattended long-term situations without a higher-security lock.