1 / 7Kryptonite Evolution Chain Lock, 10 mm x 55 cm
The Kryptonite Evolution chain lock pairs a 55 cm chain with a key-operated disc cylinder. Its 10 mm manganese-steel links and nylon cover suit buyers who want a compact chain, but the short reach may limit what can be secured.
At a glance
- The listing describes 10 mm hexagonal chain links made from hardened 3T manganese steel.
- The nylon cover is described as weatherproof and intended to help protect the wheel from scratches.
- A key-based disc cylinder lock is listed, with three stainless-steel keys described in manufacturer information.
Often bought together
Pros and cons
Pros
- The compact 55 cm chain may suit close locking points and is easier to handle than a longer chain.
- The nylon covering helps reduce direct chain contact with the wheel.
- The manufacturer describes a reinforced disc cylinder and hardened manganese-steel links.
Cons
- The 55 cm length is restrictive for buyers who need to reach wider or more distant anchors.
- At a listed 1.96 kg, it adds noticeable weight to a bike carried with the lock.
Technical specifications
13 specifications| Brand | Kryptonite |
|---|---|
| Model | Evolution |
| Lock type | Key-based |
|---|---|
| Chain link thickness | 10 mm |
| Material listed | Manganese steel |
| Cover | Nylon chain cover |
| Special feature | Anti-Corrosion |
| Lock cylinder | reinforced high-security disc cylinder lock secured against picking and reaming |
| Form factor | Chain |
|---|---|
| Chain length | 55 cm |
| Dimensions listed | 14.6 x 6.4 x 6.1 centimetres |
| Weight listed | 1.96 Kilograms |
| Control methods listed | Touch |
|---|
What to know before buying
Listing details to confirm
Listing details are inconsistent on weight: the specification table gives 1.96 Kilograms, while manufacturer copy says 2 kg. The 55 cm length is also described elsewhere as 3 feet, and the listed control method is Touch despite the key-based lock description. Treat the exact control method and stated security claims as unconfirmed listing details.
What’s in the box
Included- 55 cm chain
- Disc lock
Who is it for?
A good fit for
- Cyclists who can secure a frame or wheel to a nearby anchor and prefer a short chain.
- Buyers seeking a key-operated chain lock with a protective nylon cover.
Less suited to
- People who need a long reach around large objects or distant anchors.
- Riders prioritising a lighter lock to carry regularly.
Customer reviews on Amazon
- 5 stars
70% 70% - 4 stars
18% 18% - 3 stars
7% 7% - 2 stars
1% 1% - 1 star
4% 4%
Customer feedback reports positive impressions of quality, value, durability and reassurance, alongside mixed views on reliability and chain length. Some customers say the lock works as intended, while others report keys getting stuck. For this 55 cm model, the reported length concern is especially relevant if your locking point is not close, and the key issue matters if dependable everyday operation is a priority.
Positive themes
- Customer feedback describes the lock as good quality and good value.
- Customers report positive impressions of durability and security.
Negative themes
- Some customers say the chain is too short for their needs.
- Some report that the key can get stuck.
Mixed feedback
- Feedback on reliability is mixed, with some saying the lock does its job and others reporting key trouble.
- Customers differ on whether the chain feels manageable or too short.
Frequently asked questions
How long is the chain?
The title and manufacturer details state 55 cm. That short length may not reach larger or distant anchors.
What is the chain made from?
The listing gives manganese steel and describes 10 mm hexagonal links made from hardened 3T manganese steel.
Is this a key or touch-operated lock?
The lock is described as key-based, but a separate listing field says Touch. The stated control method is therefore inconsistent.
How much does it weigh?
One specification lists 1.96 Kilograms, while manufacturer copy says 2 kg. The supplied listing does not resolve the discrepancy.
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