By kazimladimeji 
When it comes to protecting high-value bikes, e-bikes and motorbikes, chain locks remain one of the most effective deterrents against theft. The KOHLBURG Security Chain Lock range is designed for riders who prioritise strength, certification and real-world resistance to cutting and leverage attacks.
In this guide, we review and compare KOHLBURG’s Secure Gold and Diamond chain locks, explain their security ratings, and help you choose the right model for your bike, e-bike or motorcycle.
🔒 Why Choose a KOHLBURG Chain Lock?
KOHLBURG locks are built around three key principles:
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Hardened steel chains (up to 13mm / 0.5″)
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Independent security certification (Sold Secure Gold & Diamond)
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Extra-long designs for real-world locking flexibility
Unlike lightweight cable locks, KOHLBURG chain locks are designed to resist bolt cutters, leverage attacks and sustained theft attempts, making them ideal for urban areas and overnight locking.
⭐ KOHLBURG Security Chain Lock Range – Reviewed
KOHLBURG Security Chain Lock – Gold | 120cm (4ft) Extra-Long
Best for: E-bikes, bicycles, scooters
Security Level: High / Heavy-duty
This extra-long 120cm chain lock offers excellent versatility for locking bikes to wide posts, railings or street furniture. With 0.33″ hardened steel links, it strikes a strong balance between portability and serious theft resistance.
Key features
✔ Extra-long 4ft design
✔ Heavy-duty hardened steel links
✔ Suitable for bicycles, e-bikes and light motorbikes
✔ Ideal for everyday high-risk urban locking
Who it’s for: Cyclists and e-bike riders who want strong protection without carrying extreme motorcycle-grade weight.
👉 Buy here: https://amzn.to/45pj0zv
KOHLBURG 6kg Massive Motorcycle Chain Lock – 150cm
Best for: Motorcycles, high-value e-bikes
Security Level: 10+ / 10 (KOHLBURG highest)
At 6kg, this is a serious piece of security equipment. With 13mm hardened steel chain links, this KOHLBURG lock is built to deter professional thieves and withstand aggressive cutting attacks.
Key features
✔ Massive 6kg hardened steel construction
✔ 150cm length for versatile locking
✔ Designed for motorcycles, scooters and premium e-bikes
✔ KOHLBURG’s highest internal security rating
Who it’s for: Riders who want maximum deterrence and are happy to trade portability for protection.
👉 Buy here: https://amzn.to/4pLuvIL
KOHLBURG Heavy Duty Combination Bike Lock – Secure Gold
Best for: Bikes & e-bikes where keys aren’t ideal
Certification: Secure Gold
This key-free combination chain lock offers impressive security with the convenience of a numeric code. Featuring 8mm hardened steel links and a 110cm (43″) length, it’s ideal for daily commuting and workplace locking.
Key features
✔ Sold Secure Gold certified
✔ 5-digit numeric combination
✔ 8mm hardened steel chain
✔ No keys to lose
Who it’s for: Commuters and cyclists who want Sold Secure Gold protection without managing keys.
👉 Buy here: https://amzn.to/49yw0FC
KOHLBURG 8kg Massive Motorcycle Chain Lock – 210cm
Best for: Motorcycles, overnight & high-risk areas
Certification: Sold Secure Diamond
This is the flagship KOHLBURG chain lock. Weighing 8kg and stretching 210cm, it uses 0.5″ (13mm) hardened steel links and carries Sold Secure Diamond certification — the highest level available.
Key features
✔ Sold Secure Diamond certified
✔ 8kg ultra-heavy-duty steel chain
✔ 210cm length for multiple anchor points
✔ Designed to defeat professional theft tools
Who it’s for: Motorbike owners and riders who want elite, insurance-approved security.
👉 Buy here: https://amzn.to/4sW7KF6
KOHLBURG Extra-Long Bicycle Combination Chain Lock – 45″
Best for: Casual riders, secondary locks
Security Type: Medium-to-high with convenience
This extra-long combination chain lock offers flexibility and ease of use. With a 5-digit combination and 0.24″ hardened steel links, it’s well-suited as a secondary lock or for lower-risk areas.
Key features
✔ Almost 4ft (45″) long
✔ 5-digit numeric combination
✔ Lightweight compared to heavy motorcycle chains
✔ Ideal for bikes and e-bikes
Who it’s for: Riders who want convenience and length, or a backup lock to pair with a primary Sold Secure chain.
👉 Buy here: https://amzn.to/3NCSNaA
🛒 KOHLBURG Buyer’s Guide: Choosing the Right Chain Lock
🔐 1. Sold Secure Ratings Explained
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Sold Secure Gold
✔ Suitable for bicycles and e-bikes
✔ Often accepted by insurers -
Sold Secure Diamond
✔ Highest security level
✔ Designed for motorcycles and very high-risk environments
If insurance compliance matters, always check your policy requirements.
⚖️ 2. Weight vs Security
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3–4kg: Strong bike & e-bike protection
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6kg: Serious deterrence for motorbikes
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8kg+: Maximum resistance for overnight or urban locking
Heavier chains are harder to steal — but less portable.
📏 3. Chain Length Matters
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110–120cm: Good everyday flexibility
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150cm+: Ideal for large anchors and awkward street furniture
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210cm: Allows multiple lock points or frame + wheel locking
🔑 4. Key vs Combination
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Keyed locks: Maximum security, fewer attack points
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Combination locks: Convenience, no keys, ideal for commuting
❓ KOHLBURG Security Chain Lock FAQs
Are KOHLBURG locks Sold Secure approved?
Yes. Several KOHLBURG locks carry Sold Secure Gold and Sold Secure Diamond certification, making them suitable for insurance-approved use.
What’s the best KOHLBURG lock for an e-bike?
For high-value e-bikes, choose a Sold Secure Gold chain lock or the 6kg massive chain if locking overnight.
Which KOHLBURG lock is best for motorcycles?
The 8kg 210cm Sold Secure Diamond chain lock offers the highest level of protection and is ideal for motorbikes.
Are combination chain locks less secure?
Not necessarily — but keyed locks generally offer slightly higher resistance. Combination locks are best for convenience and regular use.
🏁 Final Verdict: Which KOHLBURG Chain Lock Should You Buy?
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🔐 Best Overall Bike & E-Bike Lock: KOHLBURG Sold Secure Gold Combination Chain
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🏍️ Best Motorcycle Lock: KOHLBURG 8kg Sold Secure Diamond Chain
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⚖️ Best Balance of Weight & Security: KOHLBURG 6kg Massive Chain
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🔁 Best Secondary / Convenience Lock: KOHLBURG Extra-Long Combination Chain
If you’re serious about theft prevention, KOHLBURG’s range offers certified, heavy-duty chain locks that rival the most established security brands — often at better value.