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Kryptonite Kryptolok Standard 12mm U Lock Review

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By Best Choice team
Checked icon Last updated - September 26, 2025
8.0

Verdict overview

  • lasts a long time 7.7
  • Simple to use 7.7
  • Security 7.9
  • Durability 7.9
  • lock easily 8.9
Pros
  • Hardened steel resists tools
  • 4x8 locking dimensions
  • Anti theft protection up to 1,750 reimbursement
Cons
  • Tumbler difficult to turn.

Tech specs

recommended uses for product Bike commuting, touring
color Black
batteries included No
controller type Hand Control
special feature Key Unlock
warranty description Limited Lifetime Warranty
lock type U-lock
customer reviews4.3 4.3 out of 5 stars 910 ratings 4.3 out of 5 stars
finish Painted
product dimensions 3.15 x 1.18 x 1.18 inches
shape U Shape
item weight 2.3 pounds
special features Key Unlock
item package quantity 1
size 4 x 8 12mm
material Carbon alloy steel
finish type Painted
item dimensions lxwxh 3.15 x 1.18 x 1.18 inches
style Single
batteries required No
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Product Overview

I recently had the pleasure of trying out the Kryptonite Kryptolok Standard 12mm U Lock. I have tried a lot of bike locks, but this one stands out for its exceptional security features and durability.

First off, this lock is made from hardened high grade carbon alloy steel, which is highly resistant to hand tools, bolt cutters, and leverage attacks. Additionally, it has an interior locking dimension of 4 x 8 inches. This makes it incredibly difficult for any thief to access your bike. It also comes with a lifetime warranty and anti theft protection that offers up to 1,750 in reimbursement if your bike is stolen while using this lock.

The design of the lock is also quite impressive. It has a high security bent foot design which makes it easy to use and anti rattle bumpers that reduce noise during transport. Plus, it has a protective vinyl coating so you don t have to worry about rust or corrosion over time. To make things even better, it also includes a side mount snap in bracket for easy installation and storage.

In terms of tech specs, the Kryptolok Standard 12mm U Lock weighs 2.2 pounds and measures 3.15 x 1.18 x 1.18 inches in size. It comes in black color with a single U Shape design and painted finish type. The lock type is a combination lock and batteries are not required or included with this product.

Overall, I found the Kryptonite Kryptolok Standard 12mm U Lock to be an excellent product that offers great security features at an affordable price point. The combination lock ensures that your bike is safe from theft while the hardened steel construction gives you peace of mind that your bike will remain secure for years to come. I highly recommend this product for anyone who needs reliable protection against theft while cycling or touring on their bike as it provides reliable protection without breaking the bank!

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Frequently asked questions

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The secret behind our reviews

By Best Choice team

Best Choice Team is your go-to source for curated product recommendations across various categories. Leveraging years of industry experience and advanced AI technology, we analyze data from multiple sources to bring you the most relevant and up-to-date product lists.

Our AI-driven approach allows us to streamline the selection process, ensuring that the products we feature align with current market trends and consumer preferences. We aim to provide content that helps you navigate your purchasing decisions with greater ease Like.

Users reviews

80% of reviewers would recommend to a friend, Based on 1,820 Reviews

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