Chain Combination Bike Lock DUNLOP model 5907731989145 — green

The DUNLOP chain combination bike lock in green is a keyed-alternative security accessory designed for urban and leisure bicycles and children's bikes. It combines a flexible chain with an integrated numeric combination mechanism so the user can lock a bike without carrying a separate key. The compact, coated chain provides basic theft deterrence for short stops, school parking, and everyday use where lightweight, portable security is needed.

Advantages

This chain combination lock offers the convenience of a keyless numeric mechanism, allowing quick set-up and access. The chain construction enables flexible routing through the bicycle frame and around fixed objects, while the exterior coating helps protect the bike’s paint and reduces surface wear. Its straightforward design makes it easy for children and adults to operate and carry during commutes or leisure rides.

Suitable for

• Short-term locks at shops, cafés, or school grounds
• Everyday urban cycling and commuting where lightweight security is preferred
• Children’s bicycles and scooters that require simple, easy-to-use locks
• Temporary locking of leisure bikes in low- to moderate-risk areas

When it may not be suitable

This lock provides basic theft deterrence and is not intended for high-security needs. It may not be suitable for long-term unattended storage in high-theft locations or for securing high-value bicycles where hardened steel U-locks or heavy-duty chain locks are recommended.

Key specifications

• Lock type: Chain with numeric combination mechanism
• Finish: Protective coated chain to reduce paint damage
• Colour: Green
• Application: Designed for bicycle and kids’ ride-on security for short stops

How to use

Wrap the coated chain through the bicycle frame and around an immovable object such as a pole or bike rack, ensuring the chain passes through both the frame and wheel where possible. Align the numeric dials to the set code to open the mechanism; to lock, scramble the dials after securing the chain ends. Store the lock on the frame or in a bag when riding, and periodically check the coating and combination mechanism for wear or dirt that can affect operation.

What to consider before purchase

• Required security level—suitable for short stops and low- to moderate-risk areas, not for high-theft locations
• Compatibility with your bicycle frame and common locking points available where you park
• Preference for keyless operation and ease of use, especially for children
• Desire for a protective coating to avoid paint scratching

Usage recommendations

Use the DUNLOP chain combination lock for quick, everyday stops and school use; set a memorable but non-obvious code and periodically test the combination mechanism. For longer-term security or high-value bicycles, consider a higher-security locking solution in addition to or instead of this chain lock.