1 / 7Kryptonite Evolution 90cm Chain Lock
Kryptonite Evolution is a keyed bicycle chain lock with a 90cm chain, manganese-steel links and a disc-style lock cylinder. Its listed weight is 2.77kg, so it is better suited to securing a bike at a chosen location than to carrying with minimal extra weight.
At a glance
- Manufacturer describes a pin-less chain-end design connecting the chain to a hardened deadbolt.
- The disc-style cylinder is claimed to resist picking and drilling, and the chain is claimed to resist common hand tools.
- A weather-resistant nylon sleeve is intended to help prevent scratches to painted finishes.
- The manufacturer lists three stainless-steel keys, including one LED-illuminated key with a replaceable battery. These are listing claims, not confirmed test results.
Often bought together
Pros and cons
Pros
- The 90cm chain length offers more reach than a very short chain for securing a bicycle to a suitable fixed object.
- A protective sleeve may help avoid scratching the bike's finish while the chain is in use.
- The keyed disc-style cylinder avoids reliance on a combination code.
Cons
- At the listed 2.77kg, this is a substantial item to carry on everyday rides.
Technical specifications
15 specifications| Brand | Kryptonite |
|---|---|
| Model | Evolution |
| Lock type | Key |
|---|---|
| Special feature | Key Unlock |
| Control method listed | Remote |
| Form factor | Chain |
| Recommended use | Securing bicycles |
| Dimensions listed | 88.9 x 12.7 x 38.1 centimetres |
|---|---|
| Weight listed | 2.77 Kilograms |
| Material listed | Manganese steel |
|---|---|
| Finish | Painted |
| Chain links | 10mm six-sided chain links made of 3t manganese steel |
| Number of pieces | 1 |
|---|---|
| Country of origin | United Kingdom |
| Manufacturer warranty description | Covers any manufacturer defect through normal wear and tear., Lifetime. |
What to know before buying
Listing details to confirm
The title calls this a 3-foot, 10mm chain and claims Sold Secure Gold, while the details specify a 90cm chain and the listed features give 10mm six-sided links. The page does not independently confirm the security rating. Dimensions are also listed as 88.9 x 12.7 x 38.1 centimetres, which do not clearly describe a 90cm chain. The control method is listed as Remote despite the keyed-lock description. Confirm the exact listing configuration and relevant measurements before purchase.
What’s in the box
Included- 90cm chain
- Disc lock
Who is it for?
A good fit for
- Cyclists who want a chain for securing a bike at a fixed location and accept the listed carrying weight.
- Buyers who prefer a key-operated lock and a sleeve-covered chain.
Less suited to
- Riders seeking a light lock to carry on every journey.
- Buyers who require a verified security certification or unambiguous dimensions before choosing.
Customer reviews on Amazon
- 5 stars
81% 81% - 4 stars
13% 13% - 3 stars
2% 2% - 2 stars
2% 2% - 1 star
2% 2%
Customer feedback describes the lock as durable and well made, with some appreciating its length and perceived security. Opinions are mixed on weight and key reliability, so the listed 2.77kg matters for riders carrying it, while reports of key issues are relevant to anyone relying on frequent locking and unlocking. These are customer perceptions, not independent performance findings.
Positive themes
- Customers describe it as durable and well made, and some consider its length suitable.
- Some customers regard it as secure and worthwhile for the price.
Mixed feedback
- Weight feedback varies. Some find it reasonably heavy, while others say it is inconvenient to carry.
- Reports on reliability differ, including positive comments about the locking mechanism and concerns about the key.
Frequently asked questions
How long is the chain?
The product details list a 90cm chain, while the title says 3 feet. The page also gives overall dimensions that do not clearly describe the chain, so confirm the specific listing before buying.
What type of lock does it use?
The details identify a key lock with a disc-style cylinder. The listing also says the control method is Remote, which conflicts with that description and should be checked.
Is the Sold Secure Gold claim confirmed?
The title claims Sold Secure Gold, but the supplied details do not provide independent confirmation of that rating.
Is it easy to carry?
The listed weight is 2.77 Kilograms. Customer feedback is mixed on portability, with some finding the weight reasonable and others saying it is not easy to carry.
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