Zefal K-Traz M14 Bicycle Chain Lock - Black
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Merlin CyclesZefal Black K-Traz M14 Bicycle Chain Lock - / 120Cm
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Product Information
Full details
The Zefal K-Traz M14 is designed for urban cyclists and commuters who require a dependable, moderate-security solution to protect their bicycles in medium-risk environments. Featuring a hardened steel construction and a patented double-locking mechanism, it balances high-strength theft resistance with the flexibility of a chain, though its robust build does result in a noticeable weight that may be cumbersome for long-distance riders.
All features
| Colour | Black |
|---|---|
| Model Part Number | 3420584919012 |
| Brand | Zefal |
Extended Product Information
FAQs
What is the security level of this lock?
The Zefal K-Traz M14 has a security level of 14, making it suitable for areas with a moderate risk of theft.
How long is the chain?
The chain is 120cm long, providing enough reach to secure your bike to various fixed objects.
Can I get more keys made if I lose mine?
Yes, each lock comes with a unique serial number that allows you to request authorized key duplications.
Does the chain damage the bike frame?
No, the chain is encased in a durable fabric sleeve specifically designed to prevent scratches and protect your paintwork.
How should I carry this lock while riding?
The most common and effective method is to wrap the chain conveniently around your bicycle's seat post or frame tube.
Troubleshooting
The key is difficult to insert or turn
Clear any visible debris from the lock cylinder and apply a small amount of silicone-based spray lubricant into the keyhole.
The lock feels stuck or will not engage
Ensure that the chain links are not twisted or caught in the locking mechanism and verify that the key is fully inserted before turning.
Pros and Cons
Pros
- High security level of 14 for moderate-risk areas
- Flexible chain design allows for easy attachment to diverse objects
- Protective sleeve prevents frame damage
- Includes three keys and a serial number for easy duplication
- Wraps easily around the bike frame for storage
Cons
- Heavier than traditional cable or folding locks
- Chain links can be bulky to carry compared to compact locks
- Requires proper locking technique to utilize full 120cm length effectively
Setup, Compatibility & Care
To keep your Zefal K-Traz M14 functioning optimally, perform a light maintenance check every few months. Ensure the keyway remains free of debris by occasionally applying a silicone-based lubricant if the locking mechanism feels stiff. When not in use, avoid leaving the lock on the ground where it can collect road grime or moisture. Always keep the provided serial number in a secure place—separate from your bike—to ensure you can utilize the key duplication service if necessary. If you are mounting the lock to your frame while riding, ensure it is wrapped tightly enough that it cannot dangle into the spokes or chainrings.