Best Bike U-Locks 2021

1,908,979 Reviews Analysed
571 Review Articles Examined

After deep searching of an insanely large number of articles and reviews by our dynamic AI & Machine Learning tools; and exhaustive processing, assessment and rectification by our specialized high-tech gurus, the golden shortlist for the Best Bike U-Locks (2021) is ultimately prepared.

The ultimate guide on Best Bike U-Locks produced using Deep Learning and Artificial Intelligence technology
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In order to find the Best Bike U-Locks (2021), our smart platforms and gurus have taken many factors into account such as product usability, features that meet buyers needs and give customer satisfaction, freedom from deficiencies or defects, conformity of standards, worthiness-for-money, dependability, level of design standards, quality conformance to user requirements and good practises, safety, real buyer satisfaction and lots of others. It is worth to mention that each user has different requirements so please consider the list below as a guide and not as a gospel. Nonetheless, in the benchmarking below you can absolutely find the overall best ones despite your requirements.

Our powerful platforms and competent technology gurus work hard to identify the best product options. We strongly believe that our review assessment can help you simplify your purchase decision and make a pick among the very Best Bike U-Locks (2021).

Best Bike U-Locks

Best Choice No. 1

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

✔️ 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,250mm x 150mm 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

Best Choice No. 2

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

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
Lifetime Warranty

Best Choice No. 3

Kryptonite Kryptolok Standard 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket & KryptoFlex 410 10mm Looped Bike Security Cable

12.7mm Hardended Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks; 10mm Steel Looped Cable For Additional Security
Interior Locking Dimensions; 4″ x 9″ 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 $1,750 Reimbursement
Lifetime Warranty

Best Choice No. 4

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

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
Lifetime Warranty

Best Choice No. 5

Amazer U Lock for Bicycle, U Lock Combination Heavy Duty Bike Lock Combination, 12mm Bike Lock Bicycle Heavy Duty Combination U Lock Bike Lock Anti Theft

Why Amazer U lock can keep your bike safe? Amazer U lock is made of 12mm hardened performance steel shackle and covered by a 3.85mm PVC coating(Total lock’s thickness is almost 16mm). So it can resist cutting and leverage attacks. The PVC lining on the “U” prevents it from scratching bike paint job.
Keyless & easy to set combination: Choose Amazer U lock, no more lost keys! 4-digit set your own combination convenience allows for thousands of possible combinations. Prevent thieves use universal key to unlock your lock.
Dust cover: The combination is covered by a dust cover to protects and extends cylinder life.
Heavy duty lock offer your bike more safety: The lock’s net weight is 1.817 lbs(0.824 kg). The shackle is made of steel, the cylinder is steel and made of solid zinc alloy. Whole lock is covered by quality PC material for good looking and keep your bike from scratching.
Lock size: 8.96 Inches(length) x 5.74 Inches(width) x 0.624 Inches(thickness) – Please note: Manual measurement for reference only.

Best Choice No. 6

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

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

Best Choice No. 7

UBULLOX Bike U Lock Heavy Duty Bike Lock Bicycle U Lock, 16mm Shackle and 4ft Length Security Cable with Sturdy Mounting Bracket for Bicycle, Motorcycle and More

STURDY & DURABLE: This bike lock is made of 16mm/0.63inch(including 0.1inch environmentally silicone cover) alloy steel which is cutting-resistant, leveraging-resistant, and drill-resistant. The bicycle lock will provide your bike with more safety.
SAFER: The lock cylinder of the bike lock is made by C grade pure copper blade, which has a precise structure to prevent technical opening. The bike u lock comes with 3 rust-resistant copper keys that have complex serpentine slots, it will be safer.
CONVENIENT USE: This bike lock comes with a 4feet double looped ends steel cable which is coated with PVC covering, and the whole diameter of the cable is 0.48inch. It will provide your bike with greater locking flexibility and better protection.
PORTABLE SIZE: The size of the bike lock is 7.68inch*4.9inch. Comes with a mounting bracket that is suitable for all circular tripod in diameter ≤30mm. With the portable size, you can put the 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 which enables you to store your bike lock quickly when out on a ride. The silicone cover of u lock will protect your bike from scratches. And it will prolong the life of your u lock.

SaleBest Choice No. 8

INTEKIN Bike U Lock Heavy Duty Bike Lock Bicycle Lock, 16mm U Lock and 5ft Length Security Cable with Sturdy Mounting Bracket for Bicycle, Motorcycle and More, Black

STURDY: This bike u lock is made of 0.63inch(including 0.1inch silicone cover) carbon structural steel which is cutting-resistant, leveraging-resistant. The silicone 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.
CONVENIENT USE: The bike lock comes with a 5feet renforcement steel cable which is coated with PVC covering, and the whole diameter of it is 0.47inch. With the cable, it will provide your bike with greater locking flexibility and better protection.
LARGER SIZE: After receiving customer feedbacks about u lock, NOW WITH LARGER SIZE 8.3*5.7inch bike u lock specially designed for most bikes. Besides, comes with a mounting bracket that is suitable for all circular tripod in diameter ≤1.18inch.
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!

Best Choice No. 9

SMARTIST Bike Lock, 14mm Heavy Duty Bicycle Lock with Mounting Bracket and Key, U Bike Locks Anti Theft for Road Bike, Mountain Bike, Electric Bike, Folding Bike and More

Heavy Duty Bike Locks: The u lock for bicycle is made of 0.55in (14mm) alloy steel and lock cylinder is made of solid zinc alloy, the d-lock offering impact resistance and anti-theft performance, provides excellent all round safety protection for your bicycle
Lock for Bike Weather-Proofed: Sliding dust cover protects keyway from dirt and moisture, PVC protective coating for a smooth look and feel that protects bike from scratching or rusting to prolong the life of your lock
Double shackle Locking: The bike u lock with hardened double shackle design with anti-rotation, offers twice the security against prying and jacking, provide your bike more safety
Easy to Use: Mounting bracket means your lock goes with you, the bracket is suitable for bike tube:30-38mm, Please refer the mounting bracket picture to install. The bike lock with 2 keys. One can be used and used in daily life, and the other can be kept at home as a spare in case the trouble when you lose one carelessly
Provide You with Satisfied Bike Lock U Lock: The bicycle locks set includes bicycle bock, 2 keys, cable and mounting bracket. If you have any dissatisfaction with anti theft bicycle lock, please feel free to contact us, we provide 24-hour online customer service

Best Choice No. 10

Master Lock 8170D U-Lock Bike Lock with Key, 1 Pack

Outdoor heavy duty bike cable 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

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Best Bike U-Locks 2021

1,908,979 Reviews Analysed571 Review Articles Examined

Best Bike U-Locks

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1,908,979 Reviews Analysed
571 Review Articles Examined