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Kryptonite U Lock Comparison - August 2025
| 1 Best Choice  9.9Exceptional | 2  9.8Exceptional | 3  9.5Excellent | 4  9.4Excellent | 5 Best Value  9.1Excellent | 6  9.0Excellent | 7  8.8Very Good |
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ModelKryptonite New York Standard Bike U-Lock, Heavy Duty Anti-Theft, 16mm Shackle with Mounting Bracket and Keys, Ultimate Security for Bicycles E-Bikes Scooters | Model Kryptonite New York Fahgettaboutit Mini Bike U-Lock, Heavy Duty Anti-Theft Bicycle U Lock, 18mm Shackle with Keys, Ultimate Security Lock for Bicycles E-Bikes Scooters,Black | Model 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 | Model Kryptonite Kryptolok Standard Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Lock, 12.7mm Shackle and 10mm x 4ft Length Security Cable with Mounting Bracket and Keys | Model Kryptonite Evolution Standard U-Lock, 4x9 inches, Black, 3.5 pounds | Model Kryptonite Keeper Standard Anti-Theft U-Lock, Heavy Duty, 12mm Shackle, Black, Combination Lock, Lifetime | Model Kryptonite Combo Bike U-Lock Standard, Anti-Theft Security Bicycle Lock, 12mm Steel Shackle, 4-Digit Resettable Combination U Lock for Scooter Road Mountain Bikes |
BrandKryptonite | Brand Kryptonite | Brand Kryptonite | Brand Kryptonite | Brand Kryptonite | Brand Kryptonite | Brand Kryptonite |
Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews | Reviews  |
Features | ||||||
Security 9.6 | Security 9.4 | Security 8.6 | Security 9.1 | Security 8.9 | Security 7.9 | Security 8.4 |
Durability 9.3 | Durability 9.3 | Durability 8.6 | Durability 8.9 | Durability 8.6 | Durability 8.6 | Durability 8.4 |
Lock easily 9.1 | Lock easily 9.1 | Lock easily 8.4 | Lock easily 8.9 | Lock easily 7.4 | Lock easily 7.6 | Lock easily 7.9 |
Simple to use 9.1 | Simple to use 9.3 | Simple to use 7.9 | Simple to use 8.9 | Simple to use 8.1 | Simple to use 7.6 | Simple to use 9.1 |
Lock feature 9.1 | Lock feature 9.3 | Lock feature 8.4 | Lock feature 8.9 | Lock feature 7.9 | Lock feature 7.9 | Lock feature 7.7 |
Worth the money 9.1 | Worth the money 9.3 | Worth the money 8.4 | Worth the money 8.6 | Worth the money 8.6 | Worth the money 7.9 | Worth the money 8.4 |
Tech Specs | ||||||
recommended uses for product Cycling | recommended uses for product Security | recommended uses for product Cycling | recommended uses for product Security | recommended uses for product Security | recommended uses for product Security | recommended uses for product Security, Sports & Outdoor |
color BLACK/YELLOW | color Black | color Black & Steel | color Black & Steel | color Black | color Black | color Black |
controller type Hand Control | controller type Hand Control | controller type Hand Control | controller type Hand Control | controller type Hand Control | controller type Hand Control | controller type Ring |
special feature Anti-theft, Heavy Duty | special feature Anti-theft, Heavy Duty | special feature Anti-theft, Heavy Duty | special feature Anti-Theft, Heavy Duty | special feature Anti-Corrosion | special feature Anti-theft, Heavy Duty | special feature Heavy Duty, Portable, Lightweight, Compact, Anti-Theft, Resettable |
included components Lock | included components Kryptonite New York Lock Fahgettaboutit Mini 18mm U-Lock Bicycle Lock | included components U-Lock Bicycle | included components Locks | included components Bike Lock | included components U-Lock Bracket Key 2 | included components Lock |
lock type Key Lock | lock type U-Lock | lock type Combination Lock | lock type Keyed Lock | lock type Key Lock | lock type Combination Lock | lock type Combination Lock |
customer reviews4.6 4.6 out of 5 stars 3, 362 ratings 4.6 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 3, 004 ratings 4.6 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 12, 137 ratings 4.5 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 5, 284 ratings 4.5 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 2, 911 ratings 4.5 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 1, 542 ratings 4.5 out of 5 stars | customer reviews 4.3 4.3 out of 5 stars 636 ratings 4.3 out of 5 stars |
shape U Shape | shape U Shape | shape U Shape | shape U Shape | shape U Shape | shape U Shape | shape U Shape |
item weight 3.53 ounces | item weight 4.55 pounds | item weight 3.6 Pounds | item weight 2.9 pounds | item weight 3.5 pounds | item weight 2.05 pounds | item weight 1 pounds |
control method App | control method Touch | control method Touch | control method App | control method Touch | control method App | control method Touch |
material Alloy Steel | material Steel | material Alloy Steel | material Alloy Steel | material Alloy Steel | material Hardened Steel | material Alloy Steel |
finish type Vinyl Coating | finish type Protective vinyl coating | finish type Vinyl | finish type Vinyl | finish type Vinyl | finish type Vinyl | finish type Painted |
style New-U | style New-u | style Mini 7 w cable | style Standard w cable | style Mini 7 w cable | style Standard | style Bike U-Lock |
warranty description Limited Lifetime Warranty | warranty description - | warranty description Limited Lifetime Warranty | warranty description Limited Lifetime Warranty | warranty description Limited Lifetime Warranty | warranty description Limited Lifetime Warranty | warranty description Lifetime |
product dimensions 3.15 x 1.18 x 1.18 inches | product dimensions 9.06 x 5.98 x 1.18 inches | product dimensions - | product dimensions 4.02 x 4.02 x 9.02 inches | product dimensions 9.02 x 4.02 x 3 inches | product dimensions 3.15 x 1.18 x 1.18 inches | product dimensions 1.75 x 6.5 x 10 inches |
size 10 | size - | size Mini | size 4 x 9 12.7mm & 10mm x 122cm | size 4 x 9 14mm | size 4 x 8 12mm | size 4 x 8 |
item dimensions lxwxh 3.15 x 1.18 x 1.18 inches | item dimensions lxwxh 9.06 x 5.98 x 1.18 inches | item dimensions lxwxh 3.27 x 1.18 x 7.01 inches | item dimensions lxwxh 4.02 x 4.02 x 9.02 inches | item dimensions lxwxh - | item dimensions lxwxh 3.15 x 1.18 x 1.18 inches | item dimensions lxwxh 1.75 x 6.5 x 10 inches |
finish Vinyl Coating | finish - | finish - | finish Vinyl | finish Vinyl | finish Vinyl | finish Painted |
special features Anti-theft, Heavy Duty | special features - | special features - | special features Anti-Theft, Heavy Duty | special features Anti-Corrosion | special features Anti-theft, Heavy Duty | special features Heavy Duty, Portable, Lightweight, Compact, Anti-Theft, Resettable |
item package quantity 1 | item package quantity - | item package quantity - | item package quantity 1 | item package quantity 1 | item package quantity 1 | item package quantity 1 |
batteries required No | batteries required - | batteries required - | batteries required No | batteries required No | batteries required No | batteries required No |
pattern Bike Lock | pattern - | pattern - | pattern LOCK | pattern LOCK | pattern lock | pattern - |
batteries included No | batteries included - | batteries included - | batteries included No | batteries included No | batteries included No | batteries included - |
Review | Review | Review - | Review | Review | Review | Review - |
Available On   | Available On | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1Kryptonite30% OffKryptonite New York Standard Bike U-Lock, Heavy Duty Anti-Theft, 16mm Shackle with Mounting Bracket and Keys, Ultimate Security for Bicycles E-Bikes Scooters
9.6 Security9.3 Durability9.1 lock easilyWhy we love it
The product is made of 16mm hardended steel which makes it resistant to hand tools, bolt cutters, and leverage attacks.
The interior locking dimensions are 4 x 8.
The product comes with the Key Safe Program which gives you the option to get your first 2 keys for free if you lose them.
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9.8
2Kryptonite10% Off
Kryptonite New York Fahgettaboutit Mini Bike U-Lock, Heavy Duty Anti-Theft Bicycle U Lock, 18mm Shackle with Keys, Ultimate Security Lock for Bicycles E-Bikes Scooters,Black
9.4 Security9.3 Durability9.3 Simple to useWhy we love it
18mm hardended steel shackle resists tool and leverage attacks
Interior locking dimensions 3.25 x 6
Key safe program Kryptonite will ship your first 2 keys for free if you lose them
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9.5
3Kryptonite27% Off
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
8.6 Security8.6 Durability8.4 lock easilyWhy we love it
Exceptional theft protection.
Compact and portable design.
Durable and reliable performance.
Our ranking system
At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
