How big is the shackle?

3.25 x 7 inches inside, with a 13 mm hardened steel shackle.

What is Sold Secure Gold?

A security rating from Sold Secure, an independent testing body; Kryptonite lists this lock at Gold.

U-lock or cable lock?

A hardened U-lock is much harder to cut than a cable; the cable here is for securing the wheel alongside the U.

How heavy is the Kryptonite Evolution Mini-7 U-Lock?

3.55 lb (1.61 kg) including the cable, per Kryptonite.

Does the Kryptonite Evolution Mini-7 U-Lock come with a mount?

Yes - a FlexFrame-U bracket is included.

Kryptonite Evolution Mini-7 U-Lock with 4 ft Flex Cable

For Him / Her / Kids

Kryptonite Evolution Mini-7 U-Lock — peace of mind when the bike sits outside

Name: Kryptonite Evolution Mini-7 U-Lock with 4 ft Flex Cable
Brand: Kryptonite
Price: 89.99 USD

Kryptonite Evolution Mini-7 U-Lock with 4 ft Flex Cable

Reviewed by the WhyToBuyThis team · Updated September 2026 · How we choose

Perfect for

Commuters
Bikes parked outside
Students on campus
Splurge gift

Check it out

Price: $89.99

Price may change on Amazon. As an Amazon Associate we earn from qualifying purchases. This won't cost you anything extra.

Great gift ideaChosen for real-world gifting
Hand-pickedCurated, not scraped
Honest reviewThe catch, not just the hype

Why this gift works

The Kryptonite Evolution Mini-7 U-Lock has a 13 mm hardened steel shackle, a double deadbolt and a disc-style cylinder that Kryptonite describes as pick and drill resistant. Its inside dimensions are 3.25 by 7 inches, and it comes with a 4-foot Flex cable for securing a wheel, a FlexFrame-U mounting bracket and three keys. Kryptonite lists it at 3.55 pounds with the cable and rates it Sold Secure Gold.

For a commuter, a good lock matters as much as the bike itself. A compact U-lock is the standard choice for a bike left outside a workplace, a school or a coffee shop, and the cable covers the wheel the U cannot reach. It is a practical gift for anyone who parks outside.

Who is this gift for?

Great for

A commuter who parks at work
A student riding to class
Anyone with a new bike

Think twice if

They lock to thick posts or trees
They want the lightest possible lock

The catch

At 3.55 pounds with the cable it is heavy for riders who count grams, the small 3.25-by-7-inch shackle will not fit around thick posts or trees, and the cable is much lighter security than the U.

Skip if they never leave the bike unattended, or already lock up with a U-lock they trust.

Key specs

Kryptonite Evolution Mini-7 U-Lock with 4 ft Flex Cable specifications
Brand	Kryptonite
Model	Evolution Mini-7 with 4 ft Flex cable (002079)
Shackle	13 mm hardened steel
Inside size	3.25 x 7 in
Weight	3.55 lb with cable
Mechanism	Double deadbolt, disc-style cylinder
Included	Flex cable, FlexFrame-U bracket, 3 keys
Rating	Sold Secure Gold

Worth knowing before you buy

Kryptonite lists a lifetime warranty and an anti-theft protection offer for this model; the cable is not covered by that offer.
It opens with a key only - there is no combination option.

Why we like it

13 mm hardened steel shackle
Cable covers the front wheel
Frame bracket for carrying
Compact enough for a bag

What to look for in a bike U-lock

Shackle. Thicker hardened steel resists cutting; this one is 13 mm.
Size. Mini locks are harder to attack but fit around fewer objects, so check where they park.
Extras. A cable for the wheel and a frame mount make a lock easier to use every day.

Questions people ask

The U-lock, a 4-foot Flex cable, a FlexFrame-U frame bracket and three keys.

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