Best Onguard Bike U Locks in 2026

3mm Hardened Max Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks; 10mm Steel Looped Cable For Additional Security.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.

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

✔️HIGH-SECURITY & WEATHERPROOF CERTIFIED BY SOLD SECURE – This U-lock has been independently tested and certified by UK Sold Secure |Test Bicycle Category:SS104:2020|Certificate:2090, a leading testing and certification organization for security products. The 14mm hardened steel construction provides a strong and durable barrier against theft and harsh weather conditions.

️ ✔️ 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

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 zinc alloy blade, which has a precise structure to prevent technical opening. With the lock dust cover and zinc alloy 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.

OnGuard U-Lock PITBULL Series

PitBull Double-Team Standard U-Lock is double-teamed with 4 foot fully coated, braided steel cable allows user to leave front wheel on bike and extra locking versatility.

X4P locking mechanism offers superior protection.

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 2 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.

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!

KEYS-FREE: No need any key to secure your, motorcycle, e-scooter, gate. No more worry for forgetting keys.

STRONG SHACKLE: The 14 mm hardened zinc alloy shackle resists both cutters and leverage attacks. 4mm PVC coating protects the lock from any scratching.

COMBINATION: Easily set your own 5 numbers by the fist use. Smooth dials turning gives you confidence for quality.

Long-shackle Bulldog U-Lock

X2P Double Bolt Locking Mechanism offers best-in-class protection

Long shackle provides more locking options; Weighs: 3 pounds

Country Of Origin : China.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.

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 zinc alloy 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.

PORTABLE: The size of the u lock is 8.3*5.7inch. 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.

[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!

✔️ 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

✔️2-IN-1 BIKE LOCK SET – This set comes with (1) 2 Set of 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. (2) 4 keys same keyed alike

✔️ AMAZING CONVENIENCE AND SECURITY – 4 keys for convenience! The bike U-locks comes with 4 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

9" shackle combined with 4' braided steel cable let's you lock bike to standard parking meter post without removing front wheel

Shackle Dimensions: 115mm x 230mm (W x H x Diam) (4.5" x 9") x 13mm (0.51") D Cable Dimensions: 120cm x 10mm (4' x 0.39")

Security Rating 65,Technology: X2P

x2p double bolt locking mechanism locks shackle on both sides

Z-cylinder is bump-proof and resists picking, pulling, or drilling

Hefty 11Mm (.43 inch ) hardened steel shackle resists cutting, prying and jacking

✔️3-IN-1 BIKE LOCK SET: This set comes with (1) 33.5”HRC55 Steel Folding Lock with 2 Keys; (2) 15mm heavy duty bike U-Lock Shackle with 2 Keys; (3) 6 feet extended bike lock cable.

✔️SUPER HARDNESS FOLDING LOCK: The folding lock was made of extra-hardened HRC55 Rockwell stainless steel with 0.25-inch thickness. The bike folding lock open diameter is 33.5”which is a perfect size for electric bike and fat tire scooters

✔️HEAVY-DUTY BIKE U LOCK WITH CABLE: This bike u-lock has an extra thickness of 0.6-inch and the U-shape size is 11”x6”, it was also made of HRC55 Rockwell super-hardness stainless steel fully coated with weatherproof PVC and rubber. The extension cable of 6-foot long and 0.4-inch thickness would provide extra protection to both your bike and helmet

SECURITY FIRST, NO NONSENSE GIMMICKS – The D-lock is designed to protect high-quality bikes - no more and no less. Hence, this D lock is no lifestyle accessory with a fancy design or exciting gimmicks. We are simply focussing on security by using the strongest available steel and a safe cylinder. A secure lock does not need anything else. And that is exactly we do: we combine years of experience in the field of bike security with our high German security standards. For details, please see below.

SOLID STEEL FOR SECURITY LEVEL 10 OUT OF 10 – In contrast to many other U locks, we do not use light steel with reduced weight but also reduced safety. We believe there is simply no shortcut for security - a lock needs to be massive to prevent from theft. That is why our lock shackle has a diameter of 0.55” / 14 mm solid hardened steel and, thus, is especially secure against bolt cutters & metal saws. The “price” for this high security focus is a lock weight of 3.3 lbs / 1.5 kilo.

SECURE MULTI-DISC CYLINDER – Instead of relying on the typical insecure car key cylinder which is a relatively easy target for lock-pickers, we equipped our lock with a secure multi-disc cylinder. Multi-disc cylinders are extremely difficult for thieves as they have to align several discs at the same time to pick the lock. Aditionally, the striking T-structure of the 2-chamber locking system additionally protects the lock against attacks by drilling. 3 keys are included.

U-Locks

U-Locks

X4P Quattro Locking Mechanism for four-sided protection

Mini 90 x 140mm (3.55x5.52”) ;TriRadius shackle Cable 120CM X 10mm (4' X .39")

U-Locks

X4P Quattro Locking Mechanism for four-sided protection

Longer 111x260mm 4.37x10.24'' TriRadius shackle

U-lock helps you store your bike more securely.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.

Durable steel U-lock withstands 5,000 of cutting force for maximum theft deterrence

Vinyl cover on both U-Lock and cable allows for scratch free, weather resistant locking

Security Rating 58

New Z-Cylinder is bump-proof and resists picking, pulling or drilling.

Standard shackle length with X2P Double Bolt protection.

Security Rating 0

Compatible with Onguard 8000 series U-locks

A universal U-lock mounting bracket that works with any size bicycle tube (22mm-80mm). The versatile design allows for a variety of placement options--down tube, top tube, seat post, offset--whatever is needed on your frame to eliminate interference with cables, cages, and other accessories. Soft rubber interface won’t harm the bike’s finish. Designed to fit shackles between 11mm-14mm.

Brand New.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.

Never Used

In the manufacturers retail Packaging

Large Motorsports Disc Lock For Scooters And Motorcycles.

X4P Quattro Locking Mechanism for four-sided protection

Longer 90x140mm (3.55x5.52”) Tri Radius shackle

Security Rating: 97

FITS WIDE TIRE WHEELS 20"x 4" Opening of Lock Measures 5''x 6" Heavy Duty Hardened Steel16mm With a120db Audible Alarm that is motion activated.

SECURITY & PIECE OF MIND When your prized possession is out of sight - but within hearing range.

HARDEND MAX PERFORMANCE STAINLESS STEEL Resists Hand Tools, Bolt Cutters, and Leverage Attacks.

X2P Double Bolt Locking Mechanism locks shackle on both sides

Hefty 13mm (0.51”) hardened steel shackle resists cutting, prying and jacking

NEW double rubber coated crossbar cover protects paint and finishes

75cm X 6mm (2.46’ X 0.24")

User Settable Steel Ball Combo

Lock Is Permanently Forged To Compact 2.5’ 6mm

106mm x 200mm (4.17 in. x 7.87 in.) U-Lock

120cm x 10mm (4 ft. x 0.39 in.) Cable

High Strength Cable

Made in United States

Package dimensions :4.826 cm x 15.748 cm x 19.812 cm

Product type : LOCK