1 / 7Kryptonite Evolution Standard U-Lock, 14 mm Shackle
Kryptonite Evolution is a standard-length bicycle U-lock with a 14 mm hardened steel shackle, three keys and a FlexFrame bracket listed as included. Its 1.59 kg listed weight is a notable trade-off for riders who want a substantial lock they can carry on the bike.
At a glance
- Listing describes a standard-length shackle and a smaller crossbar design.
- The manufacturer claims a hardened double deadbolt intended to add protection against twist attacks.
- The listing claims a disc-style cylinder that resists picking and drilling.
- A FlexFrame bracket is described as part of the kit for carrying the lock on a bicycle frame.
Often bought together
Pros and cons
Pros
- 14 mm hardened steel shackle is a concrete security-focused specification.
- Three stainless steel keys are listed, so the kit offers spares.
- The supplied bracket is intended to make carrying the U-lock on a bike more convenient.
Cons
- At a listed 1.59 kg, it adds a substantial amount of weight to a bike or rider's load.
Technical specifications
13 specifications| Brand | Kryptonite |
|---|---|
| Model | Evolution |
| Lock type | U lock |
|---|---|
| Shackle | 14mm hardened MAX-Performance steel shackle |
| Form factor | U Shape |
| Security features claimed | Patent-pending hardened double deadbolt design gives additional protection against twist attacks |
| Cylinder claim | Higher security disc-style cylinder is pick and drill resistant |
| Special feature | Anti-Corrosion |
| Control method listed | Touch |
|---|
| Dimensions listed | 22.9 x 10.2 x 7.6 centimetres |
|---|---|
| Weight listed | 1.59 Kilograms |
| Material listed | Synthetic |
|---|---|
| Finish | Vinyl |
What to know before buying
- Manufacturer and listing claims describe construction and resistance features, not a guarantee against theft. Check that the standard-length shackle suits the frame and locking point you intend to use.
What’s in the box
Included- 1 lock
- 3 keys
- FlexFrame holder
Who is it for?
A good fit for
- Cyclists seeking a keyed U-lock with a hardened steel shackle and a frame-carry bracket.
- Riders prepared to carry a relatively heavy lock for everyday bicycle security.
Less suited to
- Riders prioritising a lightweight lock to carry on foot or over long rides.
- Buyers who need a chain or cable to reach distant or awkward locking points.
Customer reviews on Amazon
- 5 stars
72% 72% - 4 stars
14% 14% - 3 stars
4% 4% - 2 stars
1% 1% - 1 star
9% 9%
Customer feedback describes the lock as sturdy and a useful deterrent, while also reporting mixed experiences with unlocking, reliability and fit. Some mention sticking or the lock coming loose, and some find its weight inconvenient. These are reported perceptions rather than confirmed product faults. The feedback is relevant to a 1.59 kg keyed U-lock, so consider whether carrying it and operating its key mechanism suit your routine.
Positive themes
- Customers describe the lock as sturdy and secure, and some view it as a deterrent to thieves.
Negative themes
- Some customers say the lock feels heavy.
- Some report sticking or that it comes loose quickly.
Mixed feedback
- Ease of unlocking and fit receive mixed feedback.
- Durability and reliability experiences vary, including reports of a lock stopping after five years.
Frequently asked questions
What is listed in the package?
The explicit contents list names one lock, three keys and a FlexFrame holder. The product title also mentions a mounting bracket and keys.
How heavy is the Kryptonite Evolution U-lock?
The listing gives a weight of 1.59 Kilograms. Customer feedback also describes it as weighty, which matters if you plan to carry it regularly.
Does the listing establish a Sold Secure rating?
The product description claims Sold Secure Gold, but that claim is not present in the technical details. Confirm the rating for the exact listing and version if certification affects your choice.
Alternative options
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