July 9, 2025

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U Locks of 2025

Save up to 31% off

Best Choice

1

Kryptonite
Kryptonite New York Standard Bike U-Lock, Heavy Duty Anti-Theft, 16mm Shackle with Mounting Bracket and Keys, Ultimate Security for Bicycles E-Bikes Scooters

31% Off
Main highlights

Key Features
Hardened steel shackle resists attacks, free key replacement, up to $4,000 anti-theft protection, and includes Flexframe-U bracket for easy transport.

Ideal Use Cases
Perfect for securing bikes in high-risk areas, fitting various door sizes, and for cyclists needing robust, reliable theft protection on the go.

Customer Praise
Most reviews highlight the lock`s exceptional durability and the peace of mind offered by the anti-theft protection and key replacement program.
Key specs
- control method:App
- shape:U Shape
- material:Alloy Steel
- lock:Key Lock
- special feature:Anti-theft, Heavy Duty
9.9

Exceptional

Our Rating

9.5
Security

9.1
Durability

8.9
lock easily
How do we rank?

Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you

Careful review Our team ensures quality, value, and fit based on real user feedback

Trusted insights AI and human analysis guide your decisions, reflecting real user priorities
Real users impact

Thousands of users trust our site daily

Based on millions of stores and reviews

Shoppers influence our rankings
Analyzing top stores
Value for Money

2

Kryptonite
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

22% Off
Main highlights

13mm Shackle and 10mm Cable Security
Features a 13mm hardened steel shackle and 10mm cable for maximum security against theft.

Ideal for Urban Cycling
Perfect for city cyclists needing dependable bike security in high-theft areas.

Highly Rated Durability
Praised by users for its sturdy construction and reliable performance.
9.6

Exceptional

Our Rating

8.2
Security

8.2
Durability

8.0
Lock Feature
3

Sportneer
Sportneer Bike Lock: Heavy Duty Anti Theft Bike U Lock with 5ft Security Steel Cable - 17mm Shackle Bicycle U-Locks with Keys & Sturdy Mounting Bracket for Road, Mountain, Electric & Folding Bike
Main highlights

Durable and Secure Design
Crafted from high-quality alloy steel, this U-lock is cut-resistant, leverage-resistant, and drill-resistant, ensuring robust protection against theft.

Versatile Locking Options
Ideal for securing bicycles to racks, fences, and poles, using the included 5ft double-looped steel cable.

Praised for Strength and Appearance
Customers commend its strong build and attractive design, offering peace of mind in high-theft areas.
Key specs
- control method:Hand Control
- shape:U Shape
- material:Alloy Steel, Silicone
- lock:Key Lock
- special feature:Portable, Heavy Duty
9.4

Excellent

Our Rating

9.7
lock easily

9.3
worth the money

9.3
Simple to use
4

Master Lock
Master Lock Black Bike Lock with Key, Standard Size U-Lock for Bicycles and Other Outdoor Equipment, Anti-Theft Lock for Bikes, 8320D
Main highlights

Steel Body for Maximum Security
Hardened steel body resists cutting, sawing, and prying.

Ideal for Back Wheel Locking
Perfect fit for securing back wheels of bicycles.

Impressive Durability
Customers praise its durability and resistance to bolt cutters.
Key specs
- control method:Hand Control
- shape:U Shape
- material:Vinyl, Steel
- lock:Key Lock
- special feature:Key Lock
9.3

Excellent

Our Rating

8.7
worth the money

8.7
lock easily

8.4
Simple to use
5

Via Velo

Via Velo Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Locks with 8mm Braided Steel and 3 Keys, 4ft Length Security Cable for Bike, Scooter Mountain Road Bike
9.1

Excellent

Our Rating

8.9
Simple to use

8.7
Durability

8.7
lock easily
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6

Alshaay
Heavy Duty Bike U Lock - Super Strong 12 Ton Shear, 20mm U Shape Lock Anti-Theft Silicone Covered Electric Scooter Lock Keyhole with Sliding Cover 4ft Steel Cable with Mounting Bracket and 3 Keys(S)
Main highlights

Robust Security Features
The lock offers 12-ton hydraulic shear resistance and a 0.74-inch zinc alloy shackle for maximum protection.

Ideal for Public Parking
Perfect for securing bikes in public areas with its durable and weather-resistant design.

Highly Praised Durability
Customers appreciate the lock's robust construction and weather-proof features, ensuring long-term reliability.
Key specs
- control method:Hand Control
- shape:U Shape
- material:High Speed Steel
- lock:Key Lock
- special feature:Keyless, Anti theft
9.0

Excellent

Our Rating

8.0
Simple to use

8.0
Durability

8.0
lasts a long time
7

BELL

Bell Catalyst 200 Mini Bicycle U-Lock
8.9

Very Good

Our Rating
8

NDakter
NDakter Bike Locks Heavy Duty Anti Theft, Bicycle U Lock for Ebike, 18mm Shackle, 6FT Steel Security Cable with 3 Keys for Electric Escooter, Motorcycle, Moped, Dirt-Bike, Tri-Bike Wheel Lock Sturdy
Main highlights

High Security & Anti-theft
The NDakter U Lock features an 18mm shackle and 6FT steel cable, offering robust protection against cuts and leverage attacks.

Ideal for Multiple Vehicles
Perfect for securing e-bikes, motorcycles, scooters, and outdoor equipment with its versatile U-lock and cable combination.

Customer Praised Durability
Users appreciate the solid construction and reliability of the lock, enhancing confidence in its anti-theft capabilities.
Key specs
- control method:Hand Control
- shape:U Shape
- material:Brass
- lock:Key Lock
- special feature:Heavy Duty Anti Theft
8.8

Very Good

Our Rating

9.9
Mounting bracket

9.9
Security

9.9
lock easily
9

Kryptonite
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

25% Off
Main highlights

Robust Security Features
12.7mm hardened steel shackle resists tools, bolt cutters, leverage attacks.

Ideal for Urban Commuters
Perfect for city cyclists needing reliable security and portability.

Highly Praised Durability
Customers commend the lock's sturdiness and resistance to theft.
Key specs
- control method:App
- shape:U Shape
- material:Alloy Steel
- lock:Keyed Lock
- special feature:Anti-Theft, Heavy Duty
8.7

Very Good

Our Rating

8.7
Security

8.4
Simple to use

8.4
Durability
10

Kryptonite
Kryptonite Keeper Standard Anti-Theft U-Lock, Heavy Duty, 12mm Shackle, Black, Combination Lock, Lifetime
Main highlights

Key Features
Features 12mm hardened steel shackle, interior dimensions 4 x 8, includes Key Safe Program, and offers up to $500 anti-theft reimbursement. Lifetime warranty.

Ideal Use Cases
Perfect for cycling, effectively protects against hand tools, bolt cutters, and leverage attacks, ensuring bike security in high-risk areas.

Customer Praise
Most reviews highlight the lock`s robustness and reliability, appreciating the added peace of mind from the Key Safe Program and anti-theft protection.
Key specs
- control method:App
- shape:U Shape
- material:Hardened Steel
- lock:Combination Lock
- special feature:Anti-theft, Heavy Duty
8.6

Very Good

Our Rating

8.0
Durability

8.0
worth the money

8.0
Simple to use

U Locks of 2025

1

Kryptonite New York Standard Bike U-Lock, Heavy Duty Anti-Theft, 16mm Shackle with Mounting Bracket and Keys, Ultimate Security for Bicycles E-Bikes Scooters

9.5

9.1

8.9

How do we rank?

How do we rank?

Analyzing top stores

2

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

8.2

8.2

8.0

3

Sportneer Bike Lock: Heavy Duty Anti Theft Bike U Lock with 5ft Security Steel Cable - 17mm Shackle Bicycle U-Locks with Keys & Sturdy Mounting Bracket for Road, Mountain, Electric & Folding Bike

9.7

9.3

9.3

4

Master Lock Black Bike Lock with Key, Standard Size U-Lock for Bicycles and Other Outdoor Equipment, Anti-Theft Lock for Bikes, 8320D

8.7

8.7

8.4

5

Via Velo Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Locks with 8mm Braided Steel and 3 Keys, 4ft Length Security Cable for Bike, Scooter Mountain Road Bike

8.9

8.7

8.7

6

Heavy Duty Bike U Lock - Super Strong 12 Ton Shear, 20mm U Shape Lock Anti-Theft Silicone Covered Electric Scooter Lock Keyhole with Sliding Cover 4ft Steel Cable with Mounting Bracket and 3 Keys(S)

8.0

8.0

8.0

7

Bell Catalyst 200 Mini Bicycle U-Lock

8

NDakter Bike Locks Heavy Duty Anti Theft, Bicycle U Lock for Ebike, 18mm Shackle, 6FT Steel Security Cable with 3 Keys for Electric Escooter, Motorcycle, Moped, Dirt-Bike, Tri-Bike Wheel Lock Sturdy

9.9

9.9

9.9

9

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

8.7

8.4

8.4

10

Kryptonite Keeper Standard Anti-Theft U-Lock, Heavy Duty, 12mm Shackle, Black, Combination Lock, Lifetime

8.0

8.0

8.0

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