Choosing the right bike lock is one of the best ways to protect your bike. It not only helps deter theft but also ensures you meet the security requirements of your insurance policy.
Here’s what you need to know when choosing a lock.
1. Understanding Security Ratings
Most good bike locks are tested and rated by Sold Secure, an independent security testing organisation. Their ratings indicate how resistant a lock is to theft attempts.
- Diamond - The highest level of protection, designed to resist advanced attacks including angle grinders.
- Gold - Strong protection against determined thieves using heavy-duty tools.
- Silver - Moderate protection suitable for medium-risk environments.
- Bronze - Basic protection aimed at deterring opportunist theft.
2. Top Lock Recommendations
Based on the latest testing and security standards, here are our top picks for different needs:
High security (Gold and Diamond)
- Hiplok D1000 / Litelok X1 - Diamond-rated locks designed to resist angle grinder attacks.
Kryptonite New York Fahgettaboudit - A heavy-duty Diamond-rated option available as both a D-lock and chain.
Good value Gold-rated locks
- Burg Wächter 1600HB – A strong Gold-rated lock at an affordable price.
- Halfords 23cm D-Lock – Another budget-friendly Gold-rated option.
Chain locks for flexibility
Chain locks can make it easier to secure your bike to awkward objects or lock multiple bikes together.
- Hiplok GOLD - A wearable 10mm hardened steel chain popular with commuters.
- OnGuard Mastiff 8019 - A durable Gold-rated chain lock.
3. Lock requirements for your insurance
The lock you use must meet the requirements of your policy.
Policies purchased on or after 1 July 2025
You must use a Sold Secure Gold or Diamond rated lock, regardless of the value of your bike.
Using a Silver or Bronze lock may invalidate a theft claim.
Policies purchased before 1 July 2025
The required lock rating depends on the “as new” replacement value of your bike:
- Up to £250 – Minimum Bronze
- £251 – £1,500 – Minimum Silver
- Over £1,500 – Minimum Gold or Diamond
4. Tips for locking your bike securely
Even the best lock works best when used correctly.
- Lock the frame - Always secure the lock through the bike’s frame and attach it to an immovable object.
- Keep the lock off the ground - This makes it harder for thieves to use tools or leverage against it.
- Reduce empty space - Position the lock tightly to make it harder for thieves to insert tools.
5. Check if your lock is approved
If you want to confirm whether your lock is Sold Secure approved, you can search for the make and model using the Sold Secure Approved Product Search
If you’re still unsure, please contact the Bikmo team for support.
Bottom line: If you’re buying a new lock today, choosing a Gold or Diamond rated lock will meet current insurance requirements and provide the best level of protection for your bike.