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 reviews | 4.3 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 |

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!
Having trouble choosing between u-locks?
Compare the best u-locks and choose the one that works for you
Compare u-locksFrequently asked questions
- What is this product made of?
- What type of lock does it use?
- What features does it have to protect against theft?
- How easy is it to use?
- What is the recommended use of this product?
The secret behind our reviews
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
Show highlight comments
Leave a reply
You can help us improve our product reviews by providing us with your feedback. Please share your thoughts in the section below.