we’ve put together a collection of the best U-Locks that are currently available on the market. To help you find the perfect U-Lock among a wide variety of options, we constantly update our collection with new and trending models.

10 Best U-Locks

Based on dozens of customer reviews and ratings, the followings are the top 10 best-selling U-Locks:

# Preview Product Price
1 Kryptonite Kryptolok Standard 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket , Black Kryptonite Kryptolok Standard 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket , Black $50.21 View Product
2 Kryptonite Evolution 13mm U-Lock with FlexFrame-U Bracket Kryptonite Evolution 13mm U-Lock with FlexFrame-U Bracket $69.71 View Product
3 Schwinn Anti Theft Bike Lock, Security Level 5, U-Lock, 4 Foot Schwinn Anti Theft Bike Lock, Security Level 5, U-Lock, 4 Foot $18.32 View Product
4 Master Lock 8170D U-Lock Bike Lock with Key, 1 Pack , 6-1/8 in. Wide , Black Master Lock 8170D U-Lock Bike Lock with Key, 1 Pack , 6-1/8 in. Wide , Black $15.40 View Product
5 SIGTUNA Bike Locks - 16mm Heavy Duty U Lock with U-Lock Shackle and Bicycle Lock Mount Holder + 1200mm Steel Chain Cable Bike Lock SIGTUNA Bike Locks – 16mm Heavy Duty U Lock with U-Lock Shackle and Bicycle Lock Mount Holder +… $31.99 View Product
6 Kryptonite New-U New York Standard Heavy Duty Bicycle U Lock Bike Lock BLACK/YELLOW, 10 Kryptonite New-U New York Standard Heavy Duty Bicycle U Lock Bike Lock BLACK/YELLOW, 10 $107.21 View Product
7 Bell 7067993 Catalyst 300 U Lock, Black Bell 7067993 Catalyst 300 U Lock, Black $14.99 View Product
8 DadyMart Bike U Lock, 16mm Bike Lock Heavy Duty Combination Bicycle U Lock with U-Lock Shackle, Bike Locks Anti Theft for Road Bike Mountain Bike Electric Bike Folding Bike, Bracket Not Included DadyMart Bike U Lock, 16mm Bike Lock Heavy Duty Combination Bicycle U Lock with U-Lock Shackle, Bike… $19.99 View Product
9 Bike U Lock with Cable - Via Velo Bike Lock Heavy Duty Bicycle U-Lock,14mm Shackle and 10mm x1.8m Cable with Mounting Bracket for Road Bike Mountain Bike Electric Bike Folding Bike Bike U Lock with Cable – Via Velo Bike Lock Heavy Duty Bicycle U-Lock,14mm Shackle and 10mm x1.8m… $39.86 View Product
10 Kryptonite New York Lock Fahgettaboutit Mini 18mm U-Lock Bicycle Lock , Black Kryptonite New York Lock Fahgettaboutit Mini 18mm U-Lock Bicycle Lock , Black $115.46 View Product

Top Rated U-Lock Reviews

Since we’ve mentioned 10 different models of U-Locks on the above list, it may be difficult for you to find the right one for your needs. This is why we listed the key features of each of these U-Locks below:

Sale1

Kryptonite Kryptolok Standard 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket , Black
Kryptonite Kryptolok Standard 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket , Black

$50.21
View Product
Product Highlights:

  • 12.7mm Hardended Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks
  • Interior Locking Dimensions; 4″ x 9″
  • Key Safe Program; Kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
  • Anti-Theft Protection Offer; Up to $1,750 Reimbursement
Sale2

Kryptonite Evolution 13mm U-Lock with FlexFrame-U Bracket
Kryptonite Evolution 13mm U-Lock with FlexFrame-U Bracket

$69.71
View Product
Product Highlights:

  • 3mm Hardened Max Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks; 10mm Steel Looped Cable For Additional Security
  • Interior Locking Dimensions: 3.25″ x 7″ Cable Length: 4′
  • Key Safe Program; Kryptonite will ship your first 2 keys for free, globally, in the event you lose them
  • Anti-Theft Protection Offer; Up to $2,500 Reimbursement
  • Includes FLEXFRAME-U BRACKET providing convenient multi-location u-lock transport
3

Schwinn Anti Theft Bike Lock, Security Level 5, U-Lock, 4 Foot
Schwinn Anti Theft Bike Lock, Security Level 5, U-Lock, 4 Foot

$18.32
View Product
Product Highlights:

  • Secure your bike to help prevent theft, Security Level 5
  • Ultra durable steel U-lock withstands 10,000 of cutting force for maximum theft deterrence
  • Includes bonus 4 feet x 10 mm double crimped cable for extended reach
  • Vinyl cover on both U-Lock and cable allows for scratch free, weather resistant locking
  • Includes 2 keys, No need to memorize a combination
4

Master Lock 8170D U-Lock Bike Lock with Key, 1 Pack , 6-1/8 in. Wide , Black
Master Lock 8170D U-Lock Bike Lock with Key, 1 Pack , 6-1/8 in. Wide , Black

$15.40
View Product
Product Highlights:

  • Outdoor heavy duty bike U-lock is best used as a bicycle lock
  • U-shaped steel bike lock with key; Includes carrier bracket for easy transportation
  • Bike lock features a hardened steel body and double locking shackle for superior cutting and prying resistance
  • Bike lock body is 6-1/8 in. (16 cm) wide, with 8 in. (20 cm) shackle length, 4 in. (10 cm) width and 1/2 in. (13 mm) diameter
  • Includes one u-lock bike lock, two keys
  • Affordable U-Lock Protection
  • Disc key for additional anti-pick protection
  • Includes carrier bracket for storage convenience
  • 6-1/8-inch by 8-inchby 4-inch
  • Vinyl coating for weather and scratch resistance
5

SIGTUNA Bike Locks - 16mm Heavy Duty U Lock with U-Lock Shackle and Bicycle Lock Mount Holder + 1200mm Steel Chain Cable Bike Lock
SIGTUNA Bike Locks – 16mm Heavy Duty U Lock with U-Lock Shackle and Bicycle Lock Mount Holder + 1200mm Steel Chain Cable Bike Lock

$31.99
View Product
Product Highlights:

  • [PROTECT YOUR RIDE] This awarded SIGTUNA Bike U-lock is made of 16MM High-Performance Steel for Extensive Holding Power and Resistance against Cut and Leverage attacks with a wapping 85/100 Security Rating. Get the best security available and protect your ride with Sigtuna Locks!
  • [CHOOSE POWER] This Bike Lock Combination has a High-Security Disc-Style Cylinder and Double Deadbolt locking mechanism, very effective and certified against Leverage Attacks. With SIGTUNA you make the right choice and give thieves no chance!
  • [EASY-TO-USE] This model SIGTUNA Bike Lock Combination comes with a Easy-to-Install Bike Lock Mount, a Protective Coating to protect your bikes paint and not 2, but 3 Laser-Cut Abloy Keys. With this lock you get Security AND Convenience!
  • [100% MONEY-BACK GUARANTEE] If this U-lock is not the favorite you ever owned – some say it is heavy, but that means quality – just send it back and get a 100% refund. SIGTUNA stands for its products. Our customers love that, we know you will too!
  • [ORDER YOURS NOW] Click “Add to Cart” NOW to get your 16mm SIGTUNA Bike U lock with 1200mm Flex Cable + Mount Bracket tomorrow and give your Bike the Love it deserves.
Sale6

Kryptonite New-U New York Standard Heavy Duty Bicycle U Lock Bike Lock BLACK/YELLOW, 10
Kryptonite New-U New York Standard Heavy Duty Bicycle U Lock Bike Lock BLACK/YELLOW, 10

$107.21

View Product
Product Highlights:

  • 16mm Hardended Max Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks
  • Interior Locking Dimensions; 4″ x 8″
  • Key Safe Program; Kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
  • Anti-Theft Protection Offer; Up to $4,000 Reimbursement for 1 Year Included
7

Bell 7067993 Catalyst 300 U Lock, Black
Bell 7067993 Catalyst 300 U Lock, Black

$14.99
View Product
Product Highlights:

  • A must on campuses and in high-crime areas
  • 8 inch hardened steel shackle and crossbar for Tough Security
  • Carrying Bracket with Quick release guarantees ease of Transportation
  • Vinyl crossbar and shackle coating Protects bike from scratches
  • 500 anti-theft Protection and 2 keys included
8

DadyMart Bike U Lock, 16mm Bike Lock Heavy Duty Combination Bicycle U Lock with U-Lock Shackle, Bike Locks Anti Theft for Road Bike Mountain Bike Electric Bike Folding Bike, Bracket Not Included
DadyMart Bike U Lock, 16mm Bike Lock Heavy Duty Combination Bicycle U Lock with U-Lock Shackle, Bike Locks Anti Theft for Road Bike Mountain Bike Electric Bike Folding Bike, Bracket Not Included

$19.99
View Product
Product Highlights:

  • 4-digit combination: 4-digit combination U lock, high-quality anti-theft lock cylinder, prevent thieves from using a universal key to crack your lock. The keyless use eliminates the trouble of losing the key and has higher security. Bracket not included
  • Solid lock shackle: The U lock shackle has undergone multiple heat treatment processes to increase the hardness and strength, and it is resistant to smashing, cutting and violence.
  • Dustproof cover: The locking mechanism adopts the flip cover design, which can not only prevent dust and sand, but also prevent rain from soaking the lock mechanism directly, extending the life cycle of U-shaped lock.
  • Pvc coating: The metal solid lock shackle is covered a PVC coating, and the engineering plastic a soft shell, which will not crack at low temperature nor deform at high temperature.
  • Dimensions: 16mm(Thickness），9.0 inches (Length) x 5.7 inches (Width) U bicycle lock – please note: Manual measurement for reference only.
9

Bike U Lock with Cable - Via Velo Bike Lock Heavy Duty Bicycle U-Lock,14mm Shackle and 10mm x1.8m Cable with Mounting Bracket for Road Bike Mountain Bike Electric Bike Folding Bike
Bike U Lock with Cable – Via Velo Bike Lock Heavy Duty Bicycle U-Lock,14mm Shackle and 10mm x1.8m Cable with Mounting Bracket for Road Bike Mountain Bike Electric Bike Folding Bike

$39.86
View Product
Product Highlights:

  • ✔️ DURABLE ALL-WEATHER PROTECTION – Via Velo bike U-lock with hexagonal PVC cover resists corrosion from water, dust and dirt to prolong the life of your lock. All-weather performance means peace of mind and better security
  • ️ ✔️ EASY AND STRONG TO LOCK YOUR BIKE – The bike lock with thickness(including rubber casing):14mm,9.84 in (250mm) x 5.51 in (140mm) U shack to lock and go! Locking your bike and your wheels with 10mm x 180cm cable, fast and easy with our quick, no-hassle system. Great bike safety tool
  • ✔️ AMAZING CONVENIENCE AND SECURITY – 2 keys for convenience! The bike U-lock comes with 2 keys. One of them you can take and use in daily life and the other you can leave at home in case the trouble when you lose one carelessly
  • ✔️ SIMPLY INSTALLING BRACKET ON YOUR BIKE – Convenient high-quality mounting bracket means your lock goes with you, Our bracket is suitable for bike tube:20-42mm. Pls refer to our picture to install the bracket Value for your money
  • ✔️ WARRANTY AND CUSTOMER SERVICE: 3-year warranty applies to U lock for US, CA, UK, EU Cyclists, 90-day money back policy, 24-hour online customer service. If you are not satisfied with it, you get a full refund unconditionally. Rest assured
Sale10

Kryptonite New York Lock Fahgettaboutit Mini 18mm U-Lock Bicycle Lock , Black
Kryptonite New York Lock Fahgettaboutit Mini 18mm U-Lock Bicycle Lock , Black

$115.46
View Product
Product Highlights:

  • 18mm Hardended Max Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks
  • Interior Locking Dimensions; 3. 25″ x 6″
  • Key Safe Program; Kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
  • Anti-Theft Protection Offer; Up to $5, 000 Reimbursement for 1 Year Included
  • Lifetime

Video Overview

How to Properly Lock Your Bike using Chain and U Locks

Locking your bike properly can drastically reduce the chance of it getting stolen. That being said, when motivated, thieves can break through anything. I visited …

Final Words

So, these are all of the Best U-Locks available on the market. We hope this collection was helpful to find the right U-Lock for the money. However, we recommend checking out the features, benefits, and problems of each of these U-Locks before taking your decision.