Best Kryptonite Bike Locks 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

13 mm square parabolic shackle

double bolting shackle in the lock body

2 keys supplied

STURDY & DURABLE: Don’t risk your bike getting stolen! You’re in good hands with the Sportneer Bike Ulock which is cut-resistant, leverage-resistant and drill-resistant, made with 0.56in, high quality alloy steel. Covered in a 0.10in silicone cover, the heavy duty anti theft bicycle key lock will stay protected from wear and tear, while also protecting your bike from scratches.

ADDITIONAL 5 FT CABLE: Also included is a 5ft double-looped steel cable 0.43in thick (including PVC covering). You can use the cable to lock the frame, your helmet, the wheels, or other bikes. Secure your bike to bike racks, fences, poles and more!

PORTABLE U LOCK: This Scooter U-lock is heavy enough to keep your bike safe but light enough to carry around with ease. It measures 7.68in*4.9in and can be affixed to your bike with the mounting bracket, great for all circular tripods with a diameter of less than 30mm. Toss it in your backpack or attach it to your frame for easy access!

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.

FOR ALL YOUR SECURITY NEEDS ▶ This Bike U-lock meets all your security needs: a Heavy Duty 16mm U-lock that is Durable and Easy to Use plus a 1800mm Cable that gives you solid security on every location. Enjoy your bike rides knowing your bike is secure!

SECURE AGAINST ATTACKS ▶ This Bike U lock is made of 16MM Hardened Steel and with the extra 1800 mm Flex Cable this U lock protects your bike securely wherever you go. Thieves will think twice with this lock and choose the next bike, you are secure!

EASY TO USE AND DURABLE ▶ Locking this U-lock is like a walk in the park: it opens and locks easily, has a smooth keyhole-cover and a cable that stores conveniently with the Velcro Strap. With this lock you will enjoy easy-locking season after season.

Product 1: Outdoor heavy duty bike U-lock is best used as a bicycle lock

Product 1: U-shaped steel bike lock with key; Includes carrier bracket for easy transportation

Product 1: Bike lock features a hardened steel body and double locking shackle for superior cutting and prying resistance

Robust and pick-resistant: U-lock with ABUS XPlus cylinder to protect against tampering such as picking, lock and unlock with key

For maximum safety: Bicycle lock with hardened 13 mm square parabolic shackle: Housing, shackle and supporting parts of the locking mechanism are made of specially hardened steel

Power cell technology: The lock offers a high level of theft protection against blows and attacks

【Double-opening Head】Our DINOKA bicycle u lock combination (some people call it D lock ) is a double-opening head, the thief needs to break u shape bike lock on both sides at the same time to open it, which is safer than a single-opening head u bar bike lock.

【Imported Lock Cylingder】The lock cylinder of the bicycle is made of C-grade pure copper blades and has a precise structure to prevent various technologies from opening. In addition, the bike u locks heavy-duty anti-theft is equipped with two rust-proof copper keys with a complex snake-shaped slot, which is safer to use.

【Thick Silicone Bike Locks Heavy Duty Anti Theft】This u bolt bike lock is made of 16mm/0.63 inch (including 0.1 inches friendly silicone sleeve) hardened high-performance alloy steel, which can resist cutting and lever attacks, increased the sturdiness and durability of the lock, so u lock bike will provide more security for your bike.

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.

✔️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-Silver| Certificate:2090, a leading testing and certification organization for security products. The 15mm 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 15mm x7.5 inch U shack to lock and go! Locking your bike and your wheels with 10mm x 1.8 m (6 ft) cable, fast and easy with our quick, no-hassle system. Great bike safety tool

✔️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

PROTECT WHAT YOU VALUE ✔ This High Performance and Certified SIGTUNA Bike Folding Lock is made of special hardened ABS Steel bars and rivets and provides Maximum Security for your bike in all risk ares!

STRONG AND SECURE ✔ This SIGTUNA Folded Bike Lock is made 5mm Steel Bars, with specially designed rivets for extensive holding power against leverage attacks!

DURABLE and EASY TO USE ✔ This Bike Fold Lock comes with soft-touch Coating on the bars and matching silicone Lock Body Cover to protect your bike's paint job and an a easy-to-mount Mounting Bracket.

A must on campuses and in high-crime areas.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.

8 inch hardened steel shackle and crossbar for Tough Security

Carrying Bracket with Quick release guarantees ease of Transportation

0.22 inch steel bars, with extra soft 2-components coating to prevent damage to the bicycle's paintwork

The bars, the case, the links as well as supporting elements of the locking system are made of special hardened steel

Two component moulded digits guarantee life-long visibility

5 mm steel bars - plastic coated

ABUS X-Plus cylinder offers extremely high protection

2 keys supplied, 1 LED-lighted

【KEYS-FREE】Bike lock combination for security of your, motorcycle, electric scooter, gate. No more worry for forgetting keys with scooter lock with combination.

【COMBINATION】A strong motorcycle lock with easily setup to your own 4 numbers by the fist use. Smooth dials turning gives you confidence for quality.

【STRONG SHACKLE】The bike locks heavy duty anti theft 10 mm hardened zinc alloy shackle resists both cutters and leverage attacks. 4mm PVC coating paddle lock protects the lock from any scratching. Good gate locks for metal fence.

20/20 DIAMOND SOLD SECURE ULOCK - Best Portable & Solid Professional Bike Lock to Protect Your Bicycle. Pro Equipment for City Outdoor & Urban Cycling. Bolt Cutter Drill & Saw Proof. Mounting Bracket Sold Separately

PATENT ULTRA STRENGTH HEAVY DUTY ANTI THEFT TECHNOLOGY - Thick Anti Cut Waterproof Weatherproof Protector with Antitheft Pentagonal Shaped Crossbars. Hardened Steel Components for High Level Theft Prevention

SUPER WIDE OPENING FOR EASY LOCKING - Opens to Extra Huge 115 MM Size Clearance for Maximum Long Locking. Oversized for Flexible Free Range of Use & Fast Protection Anywhere. No Chain or Code Required!

More Convenient U-LOCK - From the makers of OTTOLOCK, the SIDEKICK brings innovation to the traditional U-Lock with a compact, lightweight design that effectively deters opportunity theft without weighing you down. Simple to use and to carry, the portable SIDEKICK easily fits in many backpacks, bags, or pockets.

Lightweight Bike Lock - At only 750 grams (1.65 lbs), the SIDEKICK allows you to lock a single tube to a post or pole at a fraction of the weight of a traditional U-Lock. The opening measures 2.75” x 5.75” (7cm x 14.5cm). Each lock comes with 3 keys

Protect Your Frame - The body of the SIDEKICK is coated in high quality silicone that won’t scratch or damage your bike frame. Made with double-shackle 12mm hardened steel and an antirotation deadbolt for security and durability.

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.

🔒【𝟮𝟬𝟮𝟮 𝗧𝗼𝘂𝗴𝗵𝗲𝘀𝘁 𝗟𝗼𝗰𝗸】Abandon the bicycle lock on the market with small size and thin inner material shortcomings, we designed this NEWEST bicycle u lock. Stronger Heavy Duty Anti Theft Bike Lock（2.6lb/1.2kg). No one will be able to cut this lock. Max 25mm hardened steel shackle while minimum 18.76mm u lock for scooter (14.73 mm carbon steel alloy). which is built to withstand attack from bolt cutters and leverage attacks. NOTICE: NO bracket available

🔒【𝗗𝗼𝘂𝗯𝗹𝗲 𝗕𝗼𝗹𝘁 𝗠𝗲𝗰𝗵𝗮𝗻𝗶𝘀𝗺】Our u lock for bicycle has a double opening head, the thief needs to pry both sides at the same time to open it. Top bike u lock directly into a crossbar with a dual locking mechanism, providing resistance to prying, pulling and jacking. Scooter locks sophisticated double locking systems, which are less likely to be broken than their cheap counterparts

🔒【𝗦𝗶𝗹𝗶𝗰𝗼𝗻𝗲 𝗥𝘂𝗯𝗯𝗲𝗿 𝗖𝗼𝗮𝘁】Anti-theft bike U-lock is fully covered by a 4-11MM premium silicone coating thickness, ensuring that your beloved bicycle will not be scratched when in use. Bicycle d lock weather protection mechanism that keeps the lock in good working order by preventing rust even when it rains a lot. Prolonging the service life of this anti theft bicycle lock. Suitable for bicycles, motorcycles, electric bikes, scooters

Every year millions of bikes are stolen.

Police statistics show that only about ten percent of these cases are solved.

It doesn't have to be like that, as ABUS covers the whole range of bike security devices with high-quality locks.

Long-shackle Bulldog U-Lock

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

Long shackle provides more locking options; Weighs: 3 pounds

✔️ 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

✔️Family Lock SET 4 Sets – 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 – 8 keys for convenience! The bike U-locks comes with 8 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

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

★★ Bike U-lock is made of 0.63 inch(16mm) high-performance steel against cut and leverage attacks. With silicone cover resists corrosion from water, dust and dirt to prolong the life of your lock. The bicycle U lock size 9.25 × 6.89 inch, which is widely used in mountain bicycles, road bicycles, and folding bicycles, providing you with high-quality bicycle safety protection.

★★ The lock cylinder of this U lock is made by pure copper blade, increasing safety factors of your bike or accessories. Pull and drill-resistant lock cylinder. Double bolt mechanism locks the shackle to the crossbar in two places, protecting against pulling, leveraging and twisting. 3 Keys included

★★ The bike lock comes with a 5 feet 11 inch (1800mm) steel cable which is coated with PVC covering. The whole diameter of the cable is 0.39inch(10mm). This double loop flex cable will provide your bike with greater locking flexibility and better protection

【Imported Lock Cylinder and Dust Cover】The D lock cylinder of the bicycle is made of C-grade pure copper blades and has a precise structure to prevent various technologies from opening. In addition, the bike locks heavy-duty anti-theft combination is equipped with two rust-proof copper keys with a complex snake-shaped slot, which is safer to use.

【Double-opening Head】Our keabys bicycle u lock combination for electric scooter lock (some people call it D lock ) is a double-opening head, the thief needs to break u shape of ulock bike lock (Candado para Bicicletas)on both sides at the same time to open it, which is safer than a single-opening head u bar bike lock.

【Thick Silicone Bicycle Locks with Combination】This bicycle lock is made of 16mm/0.63 inch (including 0.1 inches friendly silicone sleeve) hardened high-performance alloy steel, which can resist cutting and lever attacks. Our bike d lock will provide more security for your bike.

【STURDY & DURABLE】KASTEWILL bike U lock is made of environmentally friendly silicone cover and high quality alloy steel which is cutting-resistant, leveraging-resistant and dill-resistant. It will provide your bike with more safety. The silicone cover makes it resist from dust and dirt to prolong the life of your lock. At the same time, this bicycle lock will protect your bike from scratching.

【ADDITIONAL 4FT CABLE】Bike U-lock combin with 4FT steel loop cable can provide your bike with greater locking flexibility and better protection. With 4ft high-quality steel cable allows greater locking flexibility. Secure your bicycle, motocycle, electromobile to bike racks, fences, poles and more.

【MORE SAFE】Mountain bike locks sing zinc alloy lock core and complex serpentine key slot, which has a precise structure to prevent technical opening. Moreover, this bike u lock comes with 2 rust-resistant pure copper keys, it will be more safe and you will never have to worry when you lose one.

Heavy duty bike lock provide your bike with more safety: 14.7mm heavy duty locks which is made of 13mm hardened steel and solid zinc alloy & 1.7mm PVC coating. Then it can resist your lock from hand tool’s cutting & leverage attacks, and provide your bike more safety.

PVC coating & dust cover: The whole lock is covered by quality PVC material coating for keeping your bike lock from scratching rusting and great appearance.

Free transportation bracket: Come with a free high-quality mounting bracket holder for easy transportation. Our bracket is suitable for bike circular tube:20-40mm, please measure diameter of your bike circular tube before placing an order. You could refer to our instruction to install the bracket.

STRONG & SAFE The 0.57'' diameter bike U lock is made of hardened high-performance alloy steel, and the lock head is made of zinc alloy. The U-lock is resistant to cutting and leverage attacks and provides excellent anti-theft performance. 0.98 kilograms of weight in exchange for enough strength and security

LAGER U-SPACE: Interior locking dimensions: 7.5" x 4.5", Exterior dimensions: 9.8" x 7". Easy to carry and store. It provides more inner U-space than other U-locks to help lock items. NOTICE: NO bracket available

Easy to Use: The bike U lock has a 4-digit resettable anti-theft combination. Keyless convenience and annoyance, no longer have to worry about key loss and key disconnected problems. The initial password is 0000. When you set a new password, please remember to jot it down or take a photo to avoid forgetting it. NOTE: When setting your new password, please first keep the digital wheel in the correct unlock password state before turning the reset disk. Turn the reset disk 90° to set a new password