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Kryptonite Evolution Mini-7 Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Lock, 13mm Shackle and 10mm x4ft Length Security Cable with Mounting Bracket and Keys

4.5 4.5 out of 5 stars 13,020 ratings
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$75.71 with 19 percent savings
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Purchase options and add-ons

Brand Kryptonite
Special Feature Cut Resistant
Lock Type U-Lock
Item dimensions L x W x H 3.27 x 1.18 x 7.01 inches
Material Steel

About this item

  • DURABLE DESIGN: This Anti-Theft bike lock features a 13mm hardened max-performance steel shackle with a bent foot anti-rotation design that resists bolt cutters and twisting leverage attacks. The lock disc-style cylinder side keyway is protected by a sliding dust cover and is pick and drill resistant
  • MULTI-FUNCTIONAL: This Kryptonite bike lock is ideal to secure your bicycles, sports equipment, gates and fences, tool boxes & ladders, grills & lawnmowers, skateboards, truck bed and more. Includes a 4ft 10mm Steel Looped Cable For Additional Security
  • SPECIFICATIONS: U-Lock interior locking dimensions are 3.25 in. x 7 in, 13mm steel shackle with a weight of 3.55 lbs. Bike lock security cable is 4 ft. (1.2 m) long and 10 mm wide in diameter. Includes three stainless steel keys with an ergonomic design
  • EASY TRANSFORT with FLEXFRAME-U BRACKET: Includes a versatile FlexFrame U-bracket for quick and secure mounting to your bike frame, ensuring convenient transport without the need for a bag or backpack
  • OPTIONAL ANTI-THEFT PROTECTION: Eligible for Kryptonite’s Anti-Theft Protection Offer (ATPO) up to $2,500 coverage for registered locks
  • LIFETIME WARRANTY AND CUSTOMER SERVICE: Kryptonite is committed to providing our customers with high quality products, ensuring full satisfaction. If you are experiencing any problems with your product, please reach out to our Customer Experience team. We will work to solve your issue as quickly as possible. We provide our locks with a limited lifetime warranty so you can buy your lock with confidence.

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Top Brand: Kryptonite

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From the manufacturer


.
  • Rated 7/10 on Kryptonite's security scale
  • High Security lock
  • Eligible for the optional Anti-theft Protection

Evolution Mini-7 U-lock with 4' Flex

High Security

  • 13mm hardened max-performance steel shackle resists bolt cutters and leverage attacks.
  • 3 stainless steel keys
  • New "pass-thru" crossbar design includes enhanced anti-rotation features, providing advanced protection against twist and single cut style attacks.
  • New hardened double-deadbolts engage both shackle ends increasing holding power.
  • New sliding dust cover.
  • Higher security disc-style cylinder is pick and drill resistant.
  • Includes flexframe-u bracket providing convenient multi-location u-lock transport.
  • Dimensions: 3.25" x 7" (8.3cm x 17.8cm) - 3.55 lbs (1.61 kg's)

.

Shackle Size

13mm hardened max-performance steel shackle with new hardened double-deadbolts to engage both ends increasing holding power.

.

Anti-theft Protection

Register your product online to activate the optional Anti-theft Protection. In the unlikely event the product is defeated when used properly Kryptonite will pay out up to a certain value depending on the security value of the product. Visit our official website for further information. T&C’s apply.

.

Key Safe Program

Register your keys online and Kryptonite will ship you 2 keys, globally, in the event you lose them.

.

Stainless Steel Keys

3 stainless steel keys with an ergonomic design to reduce torque and keep them from bending or breaking.

Product Description

The Kryptonite Evolution Mini-7 U-Lock features a 13 mm hardened max performance steel shackle with a double deadbolt anti-rotation design that resists bolt cutters and twisting leverage attacks. The lock’s disc-style cylinder with center keyway is protected by a vinyl coating and is pick and drill resistant. The keyway also features a sliding dust cover to protect the cylinder from dirt and debris when not in use. It includes three stainless steel keys with an ergonomic design to reduce torque and keep them from bending or breaking. One of the keys has an LED key fob for added visibility in the dark. Rated at a 7 / 10 on our security scale, the Evolution Mini-7 is good for quick stops on college campuses, a couple of hours in major metropolitan areas, and all day & overnight in suburbs and rural areas. It also includes our patented Flex Frame-U Bracket providing convenient multi-location U-Lock transport. This lock is also bundled with a Krypto Flex 410 (4' 10mm) double looped braided steel cable for securing front wheel or accessories. The combination of these great features and our support programs including Key Safe, Anti-Theft Protection, and Lifetime make Kryptonite Bicycle Locks the best choice for protecting what you value.

Product information

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Kryptonite Evolution Mini-7 Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Lock, 13mm Shackle and 10mm x4ft Length Security Cable with Mounting Bracket and Keys


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Customer reviews

4.5 out of 5 stars
13,020 global ratings

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Customers say

Customers appreciate the lock's solid construction and smooth locking mechanism. They find it to be a high-quality brand lock with a solid clamp and flexible cable that allows for different locking options. However, opinions differ on the overall lock quality and size.

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148 customers mention "Build quality"114 positive34 negative

Customers like the lock's build quality. They say it's solidly made and locks smoothly. The solid clamp and flexi cable provide flexibility when locking. Overall, customers find it a great set and a good combination.

"...optional theft insurance - pleasing color scheme - excellent build quality - reputable / trusted name Cons: -..." Read more

"...I lost the keys so I have to order new keys. It seems very sturdy. I would still strongly recommend it for enhanced bike security...." Read more

"...locks that I've had, this Kryptonite Evolution appears to be better crafted, has a much heavier crossbar, the cylinder engages the shackle at both..." Read more

"...This lock will not withstand an angle grinder, but no bike locks can, really...." Read more

261 customers mention "Lock quality"151 positive110 negative

Customers have different views on the lock's quality. Some find it easy to use and secure scooters or bikes, while others report issues with the keys not locking or unlocking properly, the lock getting jammed, and difficulty locking or unlocking the lock. The lock is small, so it can be a bit challenging to lock anywhere.

"...So far so good. Its a safety/protection device. You cannot always put a price on safety/protection...." Read more

"This lock has to be locked and unlocked a very particular way. It was tedious for me. I lost the keys so I have to order new keys...." Read more

"Very convenient. Very easier to lock. I use this for my REI COOP eBike for commute work." Read more

"...the cylinder engages the shackle at both ends, the keying system feels more like a real lock, and it seems to be robust...." Read more

95 customers mention "Size"38 positive57 negative

Customers have mixed opinions about the lock's size. Some find it compact and lightweight, with nice frame mount options. Others say the shackle length is too short for most bike racks in their city.

"...is really not much heavier than most other locks, the shackle is a little too short for many real-world applications, the keying is sticky, and the..." Read more

"...Pros: - great size - nice frame mount options - two keys included - optional theft insurance - pleasing color scheme -..." Read more

"...liked everything about this u-lock except it proved to be a tad too short for our needs, so we returned it for a longer model by the same..." Read more

"This lock was sold at a fair price, the weight, size and ease of use is out standing. Will purchase again if ever required." Read more

Good for a cheap bike
3 out of 5 stars
Good for a cheap bike
Lasted for a while on a cheaper bike, but when I switched it to a more expensive one it didn't even last for more than a full month. Don't put it on anything you would expect people to even think about stealing just a basic deterrent.
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Top reviews from the United States

  • Reviewed in the United States on December 23, 2023
    First. We all need to understand. Any bike can be stolen no matter what bike lock you use. A bike lock is a deterrent. Like "hey steal the bike next to me, it does not have a lock it will be easy". That said this mini-7 is quite stout. Any thief will at least need to work a little, and carry the proper tools.

    This mini-7 was purchased for college student who would leave bike outside in a rack along with many many other bikes. So far so good.

    Its a safety/protection device. You cannot always put a price on safety/protection. However, I sure would be nicer if it was a bit less expensive.

    Pros:
    - great size
    - nice frame mount options
    - two keys included
    - optional theft insurance
    - pleasing color scheme
    - excellent build quality
    - reputable / trusted name

    Cons:
    - not clear/easy, cable storage on the frame
    - its small (duh its a mini, but be careful about buying this, it might be to small to lock both a wheel+frame to a solid support)
    - pricey

    Would I purchase again: Yes

    Would I recommend to others: Yes
    24 people found this helpful
    Report
  • Reviewed in the United States on February 16, 2025
    Very convenient. Very easier to lock. I use this for my REI COOP eBike for commute work.
  • Reviewed in the United States on February 2, 2025
    This lock has to be locked and unlocked a very particular way. It was tedious for me. I lost the keys so I have to order new keys. It seems very sturdy. I would still strongly recommend it for enhanced bike security. Tedious to put in place and tedious to remove.
  • Reviewed in the United States on July 4, 2022
    Compared to most other less expensive locks that I've had, this Kryptonite Evolution appears to be better crafted, has a much heavier crossbar, the cylinder engages the shackle at both ends, the keying system feels more like a real lock, and it seems to be robust. Overall, these are impressive qualities that I do appreciate and they make me feel better about locking in high crime areas. However, there are some issues: the 13mm shackle is really not much heavier than most other locks, the shackle is a little too short for many real-world applications, the keying is sticky, and the bracket mount needs improvement. For a lock at this price, these issues are a little disappointing. I guess I can live with the 13mm shackle with the understanding that it's a trade-off for lighter carrying weight. The shorter shackle is a bigger issue. Another inch would make it so much easier to lock in many situations. The keying can be frustrating to engage, but maybe it's just the individual lock that I purchased. The thing that I dislike most is the bracket mount. It's complicated to install. Once installed it's even harder to reinstall in a different location if you need to after you've trimmed the band. The bracket's bulky shape just doesn't look that great when mounted. Also on the issue of aesthetics. the color of the lock itself is a brighter orange than it looks to be on most web photos. Perhaps this was a marketing decision for brand identity. A more neutral color would look so much better on most bikes.
    34 people found this helpful
    Report
  • Reviewed in the United States on February 11, 2025
    This lock was sold at a fair price, the weight, size and ease of use is out standing. Will purchase again if ever required.
  • Reviewed in the United States on February 3, 2025
    It's easy to get into "analysis paralysis" when looking for bike locks on here. This one delivers on a few specific things I was looking for:
    1) You don't read too many reviews from people that bought a heavy duty lock, such as this, yet still got their bike stolen.
    2) I like that it comes with a cable. Even though I know it's only the U-Lock that truly protects the bike and that cables can easily be cut...wrapping it around your tires and other things thieves may want to steal provides that extra annoyance that can ward off those looking for a "quick grab".
    3) I like that the U-Lock can essentially be mounted anywhere on the bike. There are a few different locations they recommend mounting it, and having those options means you don't have to choose between mounting your bike lock or having a water bottle holder. You can finally have both.
    4) I like that it comes with 3 medium-duty keys that easily fit and turn inside the lock. I'm one of those people that will probably lose 1 or 2 keys of any set I am given, so this is great. Also, I never felt like I had to force the key to get it to turn (in fact, if you're forcing it you're probably doing it wrong).
    5) I like that the U-Lock buckles in on both sides, making it harder for someone to try and jam the lock off.

    All in all, if someone really wants to steal your bike, they will. But making it harder and more annoying for them to do so, and buying a heavy duty lock that will make their life difficult, significantly decreases the likelihood of that happening. I live in a medium-sized city (less than 1 million) where bike theft is very common and I feel comfortable leaving my bike locked up outside for hours with this one.
    2 people found this helpful
    Report
  • Reviewed in the United States on March 20, 2025
    Nice lock. Lube it good with dry lube before using. I had trouble turning the key in when I first used it, but after some lube and a lot of use it works great now.
  • Reviewed in the United States on December 8, 2024
    I like it. Fixed to my bike frame no problem. Solid clamp and flexi cable give flexibility when locking to differ my locations.

Top reviews from other countries

Translate all reviews to English
  • manuel ruelas pinedo
    5.0 out of 5 stars Excelente candado
    Reviewed in Mexico on February 1, 2025
    Excelente candado de seguridad, de buena calidad, robusto y que seguro protege tu bici usándolo de la manera correcta
    Customer image
    manuel ruelas pinedo
    5.0 out of 5 stars
    Excelente candado

    Reviewed in Mexico on February 1, 2025
    Excelente candado de seguridad, de buena calidad, robusto y que seguro protege tu bici usándolo de la manera correcta
    Images in this review
    Customer imageCustomer imageCustomer image
    Report
  • chk767
    5.0 out of 5 stars Parfait
    Reviewed in Belgium on January 2, 2025
    Conforme à la description
  • Mr. Mind
    5.0 out of 5 stars Robustes und sicheres Fahrradschloss – Top Schutz für dein Fahrrad und Scooter
    Reviewed in Germany on November 13, 2024
    Das Kryptonite Evolution Mini-7 Bügelschloss ist ein absolutes Muss für jeden Fahrradfahrer, der sein Fahrrad gut absichern möchte. Nach einigen Wochen im Einsatz bin ich sehr zufrieden mit der Qualität und der Sicherheitsstufe dieses Schlosses.

    Vorteile:
    Hoher Sicherheitsgrad: Mit einem Sicherheitsgrad von 7/10 bietet das Mini-7 Bügelschloss einen guten Schutz vor Diebstahl. Es ist robust genug, um das Fahrrad vor schnellen Diebstahlversuchen zu schützen, und ideal für städtische Gebiete, in denen die Gefahr eines Diebstahls höher ist.
    Bauqualität: Das Schloss ist aus hochfestem Stahl gefertigt und widerstandsfähig gegen Manipulation. Die Konstruktion fühlt sich äußerst stabil und langlebig an.
    Praktische Größe: Das Mini-7 ist kompakt und lässt sich problemlos am Fahrrad transportieren, ohne dass es zu viel Platz wegnimmt oder schwer wird. Es lässt sich einfach an einem Fahrradständer oder einer ähnlichen Struktur anbringen.
    Schlossmechanismus: Der Zylinder ist gut verarbeitet und schützt vor Picking und anderen Manipulationen. Ein solides Gefühl beim Verschließen des Schlosses.
    Was mir weniger gefällt:
    Der Preis ist etwas höher als bei anderen Fahrradsicherungen, aber angesichts der Qualität und des Sicherheitsniveaus finde ich das absolut gerechtfertigt. Außerdem könnte der Bügel für manche Rahmen etwas zu kurz sein, aber das ist bei kompakten Schlössern nun mal häufig der Fall.

    Fazit:
    Das Kryptonite Evolution Mini-7 Bügelschloss bietet hervorragende Sicherheit und ist eine ausgezeichnete Wahl für alle, die ihr Fahrrad effektiv schützen möchten. Es ist robust, kompakt und bietet ein gutes Verhältnis von Sicherheit und Tragbarkeit. Für den Preis bekommt man ein sehr zuverlässiges Produkt, das man bedenkenlos weiterempfehlen kann!
  • mongmong
    5.0 out of 5 stars <3 kryptonite <3
    Reviewed in the Netherlands on October 22, 2024
    My first ever Kryptonite product and I am INLOVE. I've got 2 (race bike and a dutch bike) of my bikes stolen and 1 (mountain bike) destroyed to pulp, but with these locks nothing has happened to my new race bike so far.
    The frame mount is super nifty and cord gives me a lot of peace in my mind HAHA

    I have zero complaints!
    I've had a handful of moments where I was unable to open the lock due to its locking mechanism, but that's probably just a skill issue.

    And! Just a headsup, these are susceptible to rusting so remember to keep the keyhole closed ;)
  • Tamara Zuñiga
    5.0 out of 5 stars Un candado de calidad.
    Reviewed in Spain on October 17, 2024
    Este candado para bicicleta ha sido una de las mejores compras que he hecho. Su mecanismo es sencillo de entender y fácil de usar; colocarlo en la bicicleta es rápido y práctico, sin importar la posición o el lugar donde lo asegures. Lo he probado en varias situaciones y siempre se adapta a diferentes tipos de bicis y puntos de anclaje en la ciudad, lo que te permite despreocuparte totalmente.

    La calidad de los materiales es impresionante. Aunque he realizado pruebas para forzarlo y verificar su durabilidad, ha resistido perfectamente. El candado muestra una excelente resistencia ante intentos de manipulación. Además, su diseño no solo es bonito, con formas y colores atractivos, sino que también es muy ligero, lo que lo hace fácil de llevar, ya sea colgado en la bici o en una mochila.

    He usado otros candados de la misma marca en zonas con alto índice de robos, y mi bicicleta siempre ha estado segura. Esto me da una gran confianza en la marca y la tranquilidad de poder dejar la bici mientras tomo un café o la dejo fuera del trabajo sin estar preocupado.

    Es, sin duda, una opción muy recomendable para cualquier tipo de bicicleta y para cualquier ciclista que busque seguridad y practicidad en su día a día.