Updated: 20 Jul 2025

10 Best bike locks heavy duty anti theft 2 packs of 2025

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Updated: 20 Jul 2025

#1

Best Choice

Kryptonite Keeper Bike U-Lock Standard with Braided Steel Cable, Heavy Duty Anti-Theft Bicycle U Lock, 12mm Shackle and 10mm x4ft Length Security Cable with Mounting Bracket and Keys,Black

9.8

KRYPTONITE

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SPECIFICATIONS: U-Lock interior locking dimensions are 4 in. x 8 in, 12.mm steel shackle with a weight of 2.40 lbs. Bike lock security cable is 4 ft. (1.2 m) long and 10 mm wide in diameter. Includes two stainless steel keys with an ergonomic design

MULTI-FUNCTIONAL: This Kryptonite bike lock is ideal to secure your bicycles, sports equipment, gates and fences, tool boxes & ladders, grills & lawnmowers, skateboards, truck bed and more. Includes a 4ft 10mm Steel Looped Cable For Additional Security

HIGH-SECURITY DESIGN: Made from a 12mm hardened steel shackle, this bike lock provides excellent resistance against cutting and leverage attacks
#2

Best Value

Kryptonite Evolution Mini-7 Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Lock, 13mm Shackle and 10mm x4ft Length Security Cable with Mounting Bracket and Keys

9.5

KRYPTONITE

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SPECIFICATIONS: U-Lock interior locking dimensions are 3.25 in. x 7 in, 13mm steel shackle with a weight of 3.55 lbs. Bike lock security cable is 4 ft. (1.2 m) long and 10 mm wide in diameter. Includes three stainless steel keys with an ergonomic design

MULTI-FUNCTIONAL: This Kryptonite bike lock is ideal to secure your bicycles, sports equipment, gates and fences, tool boxes & ladders, grills & lawnmowers, skateboards, truck bed and more. Includes a 4ft 10mm Steel Looped Cable For Additional Security

DURABLE DESIGN: This Anti-Theft bike lock features a 13mm hardened max-performance steel shackle with a bent foot anti-rotation design that resists bolt cutters and twisting leverage attacks. The lock disc-style cylinder side keyway is protected by a sliding dust cover and is pick and drill resistant
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#3

Sportneer Bike Lock: Heavy Duty Anti Theft Bike U Lock with 150cm Security Steel Cable - 17mm Shackle Bicycle U-Locks with Keys for Road Mountain Electric & Folding Bike (Black)

9.2

Sportneer

-15%

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Portable & Rugged: The Sportneer bike u lock is both portable and heavy-duty. It measures 7.76x5.02inches, with a thickness of 0.67inches/17mm, and weights 1.64lbs. Plus, its unique polygonal lock body design and silicone coating resist water, dust, and dirt, keeping your bike scratch-free and in tip-top shape.

Easy to Install & Use: Equipped with a 5ft steel cable and a bracket, the bike lock can secure wheels, frames, or other bikes to posts, fences, or poles. Better yet, the bracket fits bike tubes with a diameter under 26mm/1.02inch-38mm/1.5inch, allowing you to lick your bike with ease.

Boosted Security & Anti-Theft: Thanks to the zinc alloy lock core and alloy steel lock head, this bike U-lock can withstand hydraulic shear forces up to 12 tons. It‘s tough as nails, resisting cutting, sawing, smashing, and drilling to protect your bike from potential theft.

-15%
#4

NDakter Bike Lock Cable, 4/5.6 Feet Bicycle Combination Locks 1/2 Inch, Security 5-Digit Resettable Combo Coiling Lock with Mounting Bracket, Heavy Duty Anti Theft for Kids, Adult Bikes (12mm)

9.1

NDakter

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SELF COILING & MOUNTING BRACKET: This bike lock cable is 0.5inch/12mm thick and 4 Feet long enough for different users; Self coiling design make it easy to carry; Equipped with mounting bracket, the lock can be easily added to other objects; The quick installation button makes it install or remove the lock conveniently. (The weight of the cable lock + bracket is about 440g, only cable lock is about 412g, only bracket is about 28g)

SECURE & RESETTABLE: NDakter bike locks with 4FT long cable (distance between ends of lock), and this bike lock is 5-digit resettable combination cable bike lock, much safer than other 4 digit bicycle lock. Easy to set your own personalized number combination.(Safety tip: Please do not leave your bike out of your sight for too long, especially in high crime areas, no bike lock is 100% safe.)

BRAIDED STEEL & PVC COATING: The bike cable is made of high strength braided steel wire, which can withstand 2.4KN tension and 7KN shear force, more strength and flexibility. And the protective vinyl coating(PVC) helps prevent scratching more durable wear.
#5

Kryptonite Keeper Integrated Chain Bicycle Lock, Black, 32-Inch

9.0

Kryptonite

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Now available in 3 new colors: grey, red, & purple

New end link design secures chain to hardened deadbolt

7mm four-sided chain links made from 3t manganese steel
#6

Sportneer Bike Lock: 8mm Thick High Security Anti Theft Bike Chain Lock with 2 Keys- 3.2ft Long Heavy Duty Anti-Cut Bicycle Lock for Bike, Motorcycle, Bicycle, Door, Gate, Fence, Grill

8.9

Sportneer

-15%

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UNIQUE WATERPROOF&DIRT-PROOF CAP: A dirty keyhole makes it difficult to open your lock, so to keep it dry and safe, we include a water and dust-proof cap for dirt and rust prevention. (Note: For longer service life, please add anti-rust solution into the keyhole on a regular basis.)

METAL LOCK HEAD: Sportneer upgraded the lock head from general ABS plastic material to hammer-proof metal material, anti-rust coating, which ensures the bicycle lock more resistant to hammering than other locks on market. Besides, no matter what angle or object you’re trying to lock to, the 360° bike locks head swivel design makes it super easy to lock to anything.

0.32INCH DIAMETER ULTRA-THICK CHAIN: The thicker the bike lock chain, the more secure your property. Compared with common 0.24inch thick, Sportneer provide heavy duty bike lock measures 8mm/0.32inches thick. Made of premium manganese steel, it’s cut and shear resistant to prevent bike theft.

-15%
#7

FITTOO Bicycle Bike Code Chain Lock, 5 Digits Combination Heavy Duty Anti Theft Code Chain Lock, Re-settable Code Chain Lock, Multiple Using Convenient Lock.

8.8

FITTOO

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Waterproof & Scratchproof & Dustproof Cover: This bicycle lock chains are wrapped by a high quality 0.8mm thickness polypropylene fabric, which is a very light and wear-resistant material for long using, it is a scratch-proof cover to protect your lovely bike painting or other belongings. It also can protect your hand from scratching-hurt by the chains or ice-feeling in cold winter.

STURDY & DURABLE: This bike lock connecting chains are made of high carbon steel material, it is cut-resistant with around 1000kgs breaking load. Cutting the lock chains is not possible, it will keep your belongings much safer. The lock head post and cylinder are made by zinc-alloy material, which is very strong with up to 400kgs breaking load. And the lock head cover is made by strong ABS material, which is not easy to break or drill as well.

SECURE & RESETTABLE: Smart 5-digit resettable combination bike chain lock, can make up to 100,000 code combinations. Breaking your unique 5 digital code is impossible. Easy to set your own personalized code. You can reset the code at any time very easily, when you find the present one is not safe anymore.
#8

Sportneer Bike Lock: Heavy Duty Bike U Lock with 1.8m Security Steel Cable - 18mm Shackle Bicycle U-Locks with Keys and Sturdy Mounting Bracket for Road Mountain Bike Bicycle

8.7

Sportneer

-15%

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✿✿ Portable & Rugged: The Sportneer bike U-lock is both portable and heavy-duty. It measures 11.5x6.25 inches, with a thickness of 0.71inch/18mm, and weights 2.5lbs. Plus, its silicone coating(0.1inch) resist water, dust, and dirt, keeping your bike scratch-free and in tip-top shape.

✿✿ Easy to Install & Use: Equipped with a 6ft steel cable and a bracket, the bicycle U lock can secure wheels, frames, or other bikes to posts, fences, or poles. Better yet, the bracket fits bike tubes with a diameter under 2.2cm/0.87inch-8cm/3.15inch, allowing you to lick your bike with ease.

✿✿ Boosted Security & Anti-Theft: Thanks to the zinc alloy lock core and alloy steel lock head, this U-lock can withstand hydraulic shear forces up to 12 tons. It’s tough as nails, resisting cutting, sawing, smashing, and drilling to protect your bike from potential theft.

-15%
#9

Bicycle Chain Lock, Sportneer High Security 5-Digit Resettable Combination Anti-Theft Bike Locks, Portable Outdoors Road Bike Chain Lock for Mountain Bicycles

8.6

Sportneer

-20%

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Main highlights

Scratch-Resistant Cover & Dustproof Cap: The flexible high-quality polypropylene fabric cover protects your hands against heat or cold, and prevents chain from rust, and keeps the bike paint from scratches, ensuring the lock lasts for years to come. Plus, the dustproof cap is an added bonus, keeping rainwater and sand out of the lock hole.

Rock-solid & Built to Last : The Sportneer bicycle lock is as tough as nails. Crafted from ultra-thick 0.236"/6mm manganese steel, it boasts unparalleled resistance against cutting and sawing. The lock core, made from sturdy zinc alloy, adds an extra layer of protection, thwarting any attempts at malicious cutting and ensuring long-lasting durability.

High Security & Keyless Design: Say goodbye to the hassle of carrying keys and hello to keyless convenience. The advanced 5-digit combination lock offers unparalleled protection, with up to 100,000 possible combinations, making it virtually impossible to crack. This bike chain lock is the perfect choice for those who value safety and convenience above all else.

-20%
#10

Via Velo Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Locks with 8mm Braided Steel and 3 Keys, 4ft Length Security Cable for Bike, Scooter Mountain Road Bike

8.4

Via Velo

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Weather-Resistant & Scratch-Proof: The bike cable is equipped with a scratch-proof, wear-resistant, and water-resistant nylon sleeve cover. This protective cover ensures longevity and prevents scratches on your valuable possessions

Security & Durability - Via Velo bike U-lock offers robust protection with a 9 mm hardened steel shackle, resisting cutting, prying, and leverage attacks. The set comes with 3 ergonomic keys made of durable stainless steel, ensuring reliability

Convenient and Portable: The U-lock is heavy enough for reliable security yet light enough for easy portability. Its compact size, along with mounting bracket, allows for comfortable storage on the bike frame or in a backpack during rides

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10 Best bike locks heavy duty anti theft 2 packs of 2025

Kryptonite Keeper Bike U-Lock Standard with Braided Steel Cable, Heavy Duty Anti-Theft Bicycle U Lock, 12mm Shackle and 10mm x4ft Length Security Cable with Mounting Bracket and Keys,Black

9.8

Main highlights

Kryptonite Evolution Mini-7 Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Lock, 13mm Shackle and 10mm x4ft Length Security Cable with Mounting Bracket and Keys

9.5

Main highlights

Sportneer Bike Lock: Heavy Duty Anti Theft Bike U Lock with 150cm Security Steel Cable - 17mm Shackle Bicycle U-Locks with Keys for Road Mountain Electric & Folding Bike (Black)

9.2

Main highlights

NDakter Bike Lock Cable, 4/5.6 Feet Bicycle Combination Locks 1/2 Inch, Security 5-Digit Resettable Combo Coiling Lock with Mounting Bracket, Heavy Duty Anti Theft for Kids, Adult Bikes (12mm)

9.1

Main highlights

Kryptonite Keeper Integrated Chain Bicycle Lock, Black, 32-Inch

9.0

Main highlights

Sportneer Bike Lock: 8mm Thick High Security Anti Theft Bike Chain Lock with 2 Keys- 3.2ft Long Heavy Duty Anti-Cut Bicycle Lock for Bike, Motorcycle, Bicycle, Door, Gate, Fence, Grill

8.9

Main highlights

FITTOO Bicycle Bike Code Chain Lock, 5 Digits Combination Heavy Duty Anti Theft Code Chain Lock, Re-settable Code Chain Lock, Multiple Using Convenient Lock.

8.8

Main highlights

Sportneer Bike Lock: Heavy Duty Bike U Lock with 1.8m Security Steel Cable - 18mm Shackle Bicycle U-Locks with Keys and Sturdy Mounting Bracket for Road Mountain Bike Bicycle

8.7

Main highlights

Bicycle Chain Lock, Sportneer High Security 5-Digit Resettable Combination Anti-Theft Bike Locks, Portable Outdoors Road Bike Chain Lock for Mountain Bicycles

8.6

Main highlights

Via Velo Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Locks with 8mm Braided Steel and 3 Keys, 4ft Length Security Cable for Bike, Scooter Mountain Road Bike

8.4

Main highlights

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