The best bike locks will ensure your bike stays where you left it and prevent thieves from stealing your pride and joy.

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 $49.99 View Product
2 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 $15.37 View Product
3 Kryptonite Evolution 13mm U-Lock with FlexFrame-U Bracket Kryptonite Evolution 13mm U-Lock with FlexFrame-U Bracket $92.95 View Product
4 Kryptonite Keeper Standard 12mm U-Lock Bicycle Lock with FlexFrame-U Bracket , Black Kryptonite Keeper Standard 12mm U-Lock Bicycle Lock with FlexFrame-U Bracket , Black $36.87 View Product
5 Schwinn Anti Theft Bike Lock, Security Level 5, U-Lock, 4 Foot Schwinn Anti Theft Bike Lock, Security Level 5, U-Lock, 4 Foot $13.98 View Product
6 ABUS Granit X-Plus 540 + USH Brkt 300mm LS Shackle U-Locks ABUS Granit X-Plus 540 + USH Brkt 300mm LS Shackle U-Locks $124.46 View Product
7 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… $38.86 View Product
8 INTEKIN Bike U Lock Heavy Duty Bike Lock Bicycle Lock 16mm U Lock for Bicycle Heavy Duty U Lock with Sturdy Mounting Bracket for Road Bikes Mountain Bikes, Large INTEKIN Bike U Lock Heavy Duty Bike Lock Bicycle Lock 16mm U Lock for Bicycle Heavy Duty U Lock with… $27.99 View Product
9 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 $112.33 View Product
10 Kryptonite New-U Kryptolok Series 2 LS Bicycle U-Lock, 10 (002048) Kryptonite New-U Kryptolok Series 2 LS Bicycle U-Lock, 10 (002048) $67.95 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

$49.99
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
2

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

$15.37
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
3

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

$92.95
View Product
Product Highlights:

  • 13mm Hardended 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 for 1 Year Included. Protective vinyl coating
Sale4

Kryptonite Keeper Standard 12mm U-Lock Bicycle Lock with FlexFrame-U Bracket , Black
Kryptonite Keeper Standard 12mm U-Lock Bicycle Lock with FlexFrame-U Bracket , Black

$36.87
View Product
Product Highlights:

  • 12mm Hardened 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 $500 Reimbursement
  • Lifetime
  • Sport type: Cycling
Sale5

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

$13.98
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
Sale6

ABUS Granit X-Plus 540 + USH Brkt 300mm LS Shackle U-Locks
ABUS Granit X-Plus 540 + USH Brkt 300mm LS Shackle U-Locks

$124.46
View Product
Product Highlights:

  • The Granit X Plus 540 is the flagship bicycle U Lock from ABUS. Ideal for urban settings and high quality bicycles needing strong theft protection.
  • Lock weighs approx. 4 pounds and can be attached conveniently to the bike with the USH holder which comes included with this lock.
  • Security Rating 15 of 15 achieved through double bolting shackle/lock body. The shackle, case and supporting elements of the lock mechanism are all made of special temper hardened steel.
  • Strong square parabolic shackle with very high protection against attacks with bolt cutters, car jack or saws.
  • Shackle height: 11.8 inches, Total height: 14.5 inches.
7

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

$38.86
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
8

INTEKIN Bike U Lock Heavy Duty Bike Lock Bicycle Lock 16mm U Lock for Bicycle Heavy Duty U Lock with Sturdy Mounting Bracket for Road Bikes Mountain Bikes, Large
INTEKIN Bike U Lock Heavy Duty Bike Lock Bicycle Lock 16mm U Lock for Bicycle Heavy Duty U Lock with Sturdy Mounting Bracket for Road Bikes Mountain Bikes, Large

$27.99
View Product
Product Highlights:

  • STURDY: This bike u lock is made of 0.63inch(including 0.1inch PVC cover) carbon structural steel which is cutting-resistant, leveraging-resistant. The PVC cover makes u lock can resist corrosion from dust and dirt to prolong the life of your bike lock.
  • NO BLOCKING: The lock cylinder of u lock is made by imported pure copper blade, which has a precise structure to prevent technical opening. With the lock dust cover and cooper lock cylinder, no need to worry about blocking when opening the bicycle lock.
  • LARGER SIZE: The size of the u lock is 12.37*5.63inch. Comes with a mounting bracket that is suitable for all circular tripod in diameter ≤1.18inch. With the portable size, you can put this bike u lock into your bag or mount it on the frame of your bike.
  • EASY INSTALLATION: The mounting bracket holder is easy to install, you can refer to our instructions to install it. This convenient installation enables you to store your bike lock quickly when on a ride. Enjoy your beautiful day like never before!
  • 3 KEYS: The bike lock comes with 3 pure copper keys which are specially designed. This keys of the bicycle u lock makes duplication difficult and can prevent technology unlocking as it has complex serpentine slot. It’s safer for your beloved bikes.
Sale9

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

$112.33
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
10

Kryptonite New-U Kryptolok Series 2 LS Bicycle U-Lock, 10 (002048)
Kryptonite New-U Kryptolok Series 2 LS Bicycle U-Lock, 10 (002048)

$67.95
View Product
Product Highlights:

  • 12.7mm Hardended Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks
  • Interior Locking Dimensions; 4″ x 11.5″
  • 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

Video Overview

How to Properly Lock Your Bike using Chain and U Locks

” src=

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.