Best Heavy Duty Bike Chain Locks in 2026

Cable is constructed of a Twisted steel braid and durable vinyl jacket.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.

5/8-Inch thick x 7 foot long

Cut resistant up to 3,300 lbs.

Outdoor bike cable lock with combination is best used as a bicycle lock and to secure other outdoor equipment.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.

Cable bike lock features a preset, four-digit combination lock; Provides a basic security level that is best used as a theft deterent

Bike lock is made with braided steel for flexibility, and includes a protective vinyl coating that helps prevent scratching

Braided steel construction provides strength and flexibility along with strong cut resistance

Double-looped to accommodate pad-locks, u-locks, or disc-locks

Vinyl covering protects against rust and scratching

Premium Quality: Our security chains are made of hardened steel with a special anti-corrosion coating which makes them ideal for outdoor use. Each link has a thickness of 5/16", inside height of 1 3/8" and inside width of 1/2".This chain requires 6 tons of cutting force to break through the hardened steel.

Theft Deterrence: Our chain cannot be compromised by typical aggressive burglary attacks. Each individual link is unique in that the shape is squared rather than round. The squared link construction makes it almost impossible for theft tools to get a secure grip on the chain to cut. The thick hardened steel is extra resistant to sawing and the welded finish makes prying insurmountable.

Secure Anything: ABUS square link security chains are utilized by both industrial and consumer users. Our customers trust this chain to secure their commercial/residential properties, containers, bikes, gates, fences, trailers, ATV’s, motorcycles and much more.

High quality

Item Package Quantity: 1

Country of origin:- China

Security: Steel strong steel cable with braided steel construction provides strength and flexibility security for your bikes with strong protection

Durable: Coated in vinyl protects your cable against rusting and scratching

Wide function: It’s the perfect choice to secure your bicycles, sports equipment, gates and fences, grills & lawnmowers, skateboards, tools, ladders, mechanism, truck bed and mor

Flex Cable Length: 4-feet & Thickness: 3/8-inch ; (120cm x 10 mm)

Double looped cable compatible with all kinds of padlocks, disc locks, and U-locks

Ideal for locking bicycles cars, motorcycles, and all kinds of large equipment

17/18 APPROVED ULTIMATE SOLD SECURE GOLD - Maximum Security Protective Bike Chain Lock. Super Strong Antitheft Guard System Bike Lock Chain for City Outdoor & Urban Cycling. Automotive Like Safe Keys

3 YEAR WARRANTY BIKE LOCKS HEAVY DUTY ANTI THEFT - Hardened Steel Anti Cut Bike Locks with Key for Bolt Cutter Drill & Saw Attacks. Solid Hard Master Bike Chain Locks Safety Gear for Motorcycles E-Bikes & Scooters

PATENTED MAGNETIC CLOSURE - Smart Design Bicycle Locks with Magnetic Close Function for Easy Locking. Waterproof Weatherproof No Corrosion 10MM Metal Links Bicycle Lock Chain for Outside & Indoor Use

COMPLETE SECURITY KIT - Each kit includes a premium, solid forged one-piece pad lock, three keys, 3/8" x 9' high security chain and a cordura wear pad. Chain length may vary +/- up to 2". Professional operators choose Vulcan chain and lock kits to secure millions of pieces of valuable equipment every year — including trailers, motorcycles, bikes, and ATVs. Work with confidence, knowing that these chains and locks are backed by the 50 years of manufacturing expertise that only Vulcan can provide.

NEARLY IMPOSSIBLE TO DEFEAT OR CUT - The case hardened chain cannot be cut by hand with bolt cutters, and the lock includes a maximum security mechanism for ultimate protection. The square link shape of the chain does not allow bolt cutters to get a proper grip and the lock has been specially designed to be nearly impossible to grip with burglary tools. If you do not have the keys, you literally need an acetylene torch to defeat this chain and lock kit.

HIGHEST QUALITY MATERIALS AND CONSTRUCTION - The solid forged brass one-piece body padlock has an exclusive shape and design that cannot be defeated with any normal burglary tools. The case hardened security chain is hardened to 63 rc at 10% depth and 50 rc in the core, making it impossible to cut with bolt cutters or any other hand tool. No other lock and chain kit on the market is made of stronger materials or has a more difficult design for criminals to defeat.

TOP RATED LIGHTWEIGHT COMPACT BIKELOCK - Best Light Weight Portable & Solid Bike Lock Protects Your Bicycle - No Code. Perfect Equipment for City Outdoor & Urban Cycling. Bolt Cutter Drill & Saw Proof

PATENTED ULTRA SECURE HEAVY DUTY ANTI THEFT TECHNOLOGY - Hardened Waterproof Weatherproof Bicycle Protector for Peace of Mind with Sturdy Anti Tamper Rivets. Multi Locking Guard System Stops Thieves

RELIABLE & TRUSTED PROTECTION - Pro Security Kit & Accessories Set: Master Keys & Case Holder. Easy to Use & Carry. Flexible Foldable Lock Opens to 85 CM Chain Link Circumference. Locks to Stands Racks & Bars

Keyless Secure Lock Mechanism: This chain bicycle lock has advanced 5-digit combination lock, allowing up to 100,000 possible codes making it nearly impossible to crack. Combo bike locks with keyless convenience

Durable Cut Resistance Cable: This heavy duty anti theft bike chain locks is made from extra thick manganese steel for cut resistance and protective zinc-plated coating to prevent from being scratched and sawed, long lifespan

Easy To Set/Reset: Easy to set and reset your own personalized number combination.

Versatile security. Steel cable provides protection against thieves. Secure a variety of items: gates, bikes, kayaks, surfboard, paddle boards and more!

Unique design. Unlike most security cables, the male end of the cable is the same diameter as the cable itself allowing the cable to pass through narrow spaces such as kayak and paddleboard scupper holes.

Weatherproof materials. Constructed of marine grade stainless steel and vinyl coated to provide protection against the elements while preventing scratches to the secured item. Note: the locking mechanism is weather resistant - rinse with fresh water when exposed to salt water and periodically lubricate.

SECURE & RESETTABLE: Smart 5-digit resettable combination bike chain lock, much safer than other 4 digit locks. Easy to set your own personalized number combination.

STURDY & DURABLE: It's hard to break through as the lock cylinder of the bike lock is made of zinc alloy. The bicycle chain lock is made of 0.27 inch alloy steel which is drill-resistant and anti-tech unlocking.

SCRATCH-PROOF FABRIC PROTECTION: The bicycle chain lock is wrapped by a high quality polypropylene fabric, which is scratch-proof and wear-resistant, anti-hot and anti-icing hands; it protects the chain and prevents it scratching your bicycle frame, long lifespan.

5-DIGIT COMBINATION: Comes with a 5-Digit resettable combination locking mechanism, this bicycle lock allows up to 100,000 possible codes making it nearly impossible to crack, which is safer than other 4 digit locks. Never need to worry about losing keys.

HUMANISED DESIGN: The smooth lock head of this bike chain lock is made of PE plastic which helps you turn the lock accurately without blocking. The combination bike lock comes with a flexible protective cloth sleeve which can protect the bike from scratch.

STURDY & DURABLE: It's hard to break through as the lock cylinder of the bike lock is made of zinc alloy. The bike chain lock is made of 0.24inch alloy steel which is drill-resistant and anti-tech unlocking. It will provide your bike with more safety.

High security bike lock: Our bike lock is 5-digit combination, up to 100,000 code combinations, which makes the bike chain lock nearly impossible to crack, easily to reset.

High quality keyless bike lock: The bike lock has upgraded high quality cut resistance chain and offers high resistance to cut, saw and drill, making your bike not stolen and the chain not broken.

Intelligent combination bicycle lock: The optimisation of lock head material can ensure the durability of the bicycle lock and provide waterproof and dust-proof protection.

Heavy Duty Chain and Padlock: Our H&S security chain makes it difficult for the theft to cut this with bolt cutters and other tools. The strength of this chain pair with a robust padlock with keys to enhance and add maximum protection to your bike.

Innovative Design with 5 Keys: Our bike chain and padlock set is known for their high-impact strength and has 5 keys to ensure extra spares. The chain is covered by a thick black sleeve which protects the links from possible scratches

Sturdy & Durable Construction: The mountain bike lock is hard to break through as the chain links are made of triple heat-treated boron manganese for the ultimate strength. The narrow inner width of individual links defends against leverage attacks.

✔【Size & Qty】4 sets of 1/8 inch by 20 inch safety cables come with 3/16" carabiner.

✔【Nicely Made】Stainless steel can increase breaking strength, safety and service life of rope.

✔【Heavy Duty】Reliable and heavyweight, steel wire rope is sturdy enough to support up to 132 lbs.

Key lock helps you store your bike more securely

5 feet x 8 mm braided steel cable provides convenience and strength

Tough protective vinyl cover offers weather resistance and prevents scratches

【Cut Resistant U Lock】Only 25mm inner diameter is smaller than ordinary u-shaped locks, making it difficult for hydraulic shear to enter the lock and preventing it from being cut easily. Bright-colored lock on your bike could be enough for them to decide to skip your bike and go on to the next one.

【φ48mm Steel Ring】There's a steel ring on one side and a free steel ring. It has many ways to use it. Made of 3T manganese steel materials and heat treatment hardening technology. 10mm chain is thick enough to withstand 10KN tension and 20KN shear force.

【4 Unique and Ergonomic Keys】One for daily use, the others are self-assigned and difficult to duplicate or wear out. The key can only be pulled out after locking to prevent key loss. Made of hard and durable stainless steel, never bend or twist.

🚲 DETER BIKE THIEVES - Our bicycle locking cable is an effective deterrent for theft. It will take immense strength and specialized tools before it breaks, thanks to its thick material and design.

🚲 STURDY IN BRAIDED STEEL - Flexible steel braided into a 3/8” thick 15ft lock cable. That’s what you’re getting with our bike lock cord. Its sealed looped ends are suitable for all padlocks.

🚲 NO SCRATCHES - You don’t have to worry about this bike cable lock damaging the paintwork of your bike frame. It’s coated in vinyl, which prevents rust and scratches while also making it stronger.

✓ The Ram Pro Heavy Duty Hardened Steel Square Link Bike Chain is an extremely useful product when there is a need of protecting your bikes or any other possessions thereby making them safe as well as secure.

✓ SPECS: Our square security chain comes with the ideal size which is just ideally suited for the purpose of securing the bike and other possessions. The heavy duty bike chain link lock is made of 3 ‘’ X 3/8 ‘’ hardened steel square link chain so as to make the product just the ideal one its intended purpose of use.

✓ QUALITY: Our security chain square is made up of high quality steel which makes it extremely convenient for use. Moreover, being made of premium quality steel, the chains are highly durable in nature and hence are not easily damaged at the time of using them.

THE ULTIMATE IN SECURITY: If you’re really trying to protect your bikes or other possessions the Guard Security Chain is the top of the line in protection. It provides security for even those hard to lock up possessions, protected from prying, sawing, and cutting.

PROTECTED FROM DAMAGE: Other chains or locks expose links and hardened steel to your bike. This chain is covered with heavy weight canvas/nylon blend to prevent scratching. It’s perfect for your most valuable bikes and property protected from theft and damage all in one.

HEAVY DUTY WELDED LINKS: Average chains can be pried open and weaker metals can be vulnerable to bolt cutters. The Guard Security Chain is made with hardened steel square links that are professional welded for superior pry resistance making it the best choice for your property.

FEATURES - Brinks’ flexible twisted steel cable has a heavy-duty vinyl protective wrap to prevent marring and corrosion..Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.

MEASUREMENTS - Measures 1/4" in diameter and is 6 ft. long with loop ends, with a cut strength of 1500 lbs.

USE WITH OTHER BRINKS PRODUCTS - Able to be used with Brinks’ other padlocks, disc locks, and other security measures.

STURDY & DURABLE: The bike lock is made of 8mm/0.32inch heat treatment hardening high carbon structural steel square link which is resistant to cutting, breaking, and shearing. The heavy duty bicycle chain lock is perfect for protecting your bicycle, motorcycle, and other valuables things.

NO BLOCKING: The lock cylinder of this bike chain 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 heavy duty bike lock.

HUMANISED DESIGN: This bike chain lock comes with 3 keys, so you'll always have a spare one. It will offer you some peace of mind in case you lose one. The bicycle chain lock comes with a flexible protective cloth sleeve which can protect the bike from scratch.

0.32inch-Diameter Ultra-Thick Chain: The thicker the bike lock chain, the more secure your property, which is why this heavy duty bike lock measures 8mm/0.32inches thick. Made of premium manganese steel, it’s cut and shear resistant to prevent bike theft.

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. To make it easier to lock onto any object, the bicycle lock head is rotatable 360°. No more wasted time when you’re trying to lock your bike! (Note: For longer service life, please add anti-rust solution into the keyhole on a regular basis.)

Wear-resistant Protective Cover: Keep the bike chain for lock with keys in good condition as well as your bike thanks to the non-woven fabric, which resists corrosion and abrasion and prevents scratches and chips of your bike frame.

【80db Alarm】Press the red button for alarm setting, 80db alarm will be issued when vibration is received. Its alarm feature should do a great job scaring off thieves. (80db can be considered the sound of a busy road with cars.)

【Strong Cut Resistant】Square link chain made of triple-heat-treated manganese steel for maximum strength. 4-feet long and resists prying and cutting for maximum protection wherever you park. Much safer than most of other chain lock in the market. The chains have a soft and strong canvas sleeve to lessen wear and noise.

【3 Double Row Serpentine Slot Keys】Made of hard and durable stainless steel, never bend or twist or wear out and difficult to duplicate. Anti-theft lock cylinder design, the key can only be pulled out after locking to prevent key loss. One for daily use, the others are self-assigned.

[CUT RESISTANT] Delswin security cable is made of 7 quality braided steel wire. As you know, braided steel cable has a greater core density than twisted cable increasing resistance against cutting and the possibility of theft.

[PROTECTIVE COATING] Bike steel cable is 2/5 in diameter and is covered in a weather resistant PVC material to remain useful in all types of weather, can effectively avoid rust and scratching valuables.

[COMPATIBLE WITH ALL KINDS OF LOCKS] The steel cable with loops allow for using with pad-locks, u-locks, disc-locks and more.

【Why U Need a Chain Lock】D locks and chain locks can both provide a great level of protection for your bike. After comparisons, the pros of a chain lock can be obviously seen. A chain lock can secure multiple bikes, and is great for bike sheds.

【5 Digit Combination】Favoto 5-digit chain lock can provide up to 100,000 different combinations, which make decryption impossible. The chain lock is resettable; you can change the combination according to your needs.

【Hardened Steel Material】Zinc alloy lock cylinder, hardened steel material, and covered with ABS plastic, it can work perfectly in all temperatures. The heavy duty material makes the lock wear-resistant, rust-proof and cut-resistant.

Stable & Trustworthy: Bike lock with high quality keyed lock core, lock/unlock smoothly with low failure rate.

Durable & Covered: Bicycle lock with 12mm PVC steel cable, eco-friendly ABS body, galvanized lock tail. With a dust proof cover on keyhole.

Anti-theft: Heavy duty anti theft bike locks with 2 keys. It’s very necessary to have a great lock for your bike at any time.

SECURITY FIRST, NO EXCUSE GIMMICKS – This chain lock of type Helsinki is designed to protect high-quality bikes and motorbikes - no more and no less. Hence, this lock is no lifestyle accessory with a fancy design or exciting gimmicks. We prioritize security by using an especially strong Titanium steel and a particularly safe cylinder that matches car security standards. A secure lock does not need anything more: we combine years of experience in the field of bike security with our high German security standards. For details, please see below.

SOLID STEEL INSTEAD OF LIGHT STEEL – In contrast to many other chain locks who are advertised as lightweight, we do not use light steel with reduced safety. We believe there is simply no shortcut for security. That is why our lock is made of solid hardened steel and, thus, is especially secure against bolt cutters & metal saws. The “price” of this high anti-theft focus is a heavy lock weight of 5.5 lbs / 2.5 kg. Greatly suited for motorcycle, scooter, moped, ebike, pedelec, electric bike, touring bike, mountain bike, trekking bike & bike trailer.

EXTRA-LONG LOCK – The longer the lock, the more convenient and secure the bicycle can be locked. This bike chain lock has a spacious length of 4 feet / 47 inch / 120 cm. This length is important to securely lock both your bike frame AND the front wheel to a fixed object. Or to secure several bikes at once.