Here, we’ve got a list of some of the best heavy-duty bike locks to look out for this year.

Kryptonite New York Bike Lock

The Kryptonite bike locks were always on the cyclist’s radar. RThe Kryptonite NY U Lock is the new heavy-duty bicycle lock. The compact lock comes with simple operation and has a 16mm hardened steel shackle. The top U bar locks directly into a crossbar with a dual locking mechanism making it physically impossible to break. The pass-through crossbar design includes an enhanced Anti Rotation feature. It provides excellent protection and strength against twists and cuts. The Kryptonite bike lock comes with the Key Safe initiative. Registering your keys online will enable you to get an additional set of keys for free in case of key lost. With the whole delivery, you will get 3 sets of keys including an LED replaceable key fob. Key Features: 16mm hardened steel shackle | Double bolt mechanism | Anti Rotation | 3 sets of keys | LED replaceable key fob

Very secure and strongEasily mounts to the bikeWider U shaped shackle is long enough to lock the bike easily

Bulky and causes stability issues when you are on the bikeBulky to transportRequires additional holder mount to keep the lock when you are riding

Via Velo U Bike Lock with Cable

The Via Velo U Bike Lock is a heavy-duty bicycle U lock with a 14mm shackle that extends greater security. The bike lock has a 2 in 1 security system that has an extensible 5 ft vandal-proof cable apart from the U lock. The shackle is made of stainless steel and is extremely hard. It can withstand the most force applied to it, securing your bike from theft. The tough double-bolt crossbar locking mechanism in the lock offers twice the security against force and jacking. The cable that you get with the bike lock is flexible and made of steel. There is also a high-quality mounting bracket that attaches your lock to your bike while riding. The quick-release bracket column lets you detach the lock with ease. There is also the lock debris cover that keeps dust and dirt away from your lock. Key Features: 14mm stainless steel shackle | double-bolt crossbar | 5 ft vandal-proof cable | PVC coating | quick release bracket column | 3 sets of strong keys

Offers excellent and all-round protectionThe locking mount is good and helps it keep the lock intact while you rideAffordable

There are reports of the locks being jammedA bit bulky to carry around

Kryptonite Keeper

The Kryptonite Keeper is a durable heavy-duty bike lock that offers a good level of protection. It comes with a 12mm hardened steel shackle and has a double deadbolt design. This design withstands forceful rotation and twist attacks and resists breakage. The Kryptonite Keeper bike lock also comes with two stainless steel keys. Keep in mind to register online for the Key Safe program as Kryptonite will send two replacement keeps if your personal key gets lost. This bicycle lock is also updated with the disc-style cylinder and a center key way to protect against brute force attacks. There is the side mount snap in the bracket for mounting your lock on your bike frame. You get a lifetime warranty and superior customer support as always from Kryptonite. Key Features: 12mm hardened steel shackle | double deadbolt design | two stainless steel keys | Key Safe program | side mount bracket | LED replaceable key fob

Offers a good degree of safety to your bikeThe protective coatings keep the lock and the bike from scratcheseasy to use

Bulky and not so easy to transport

Bare Rugged U Lock with Cable

The Bare Rugged U lock comes is an excellent anti-theft bike accessory that offers you safety. It is a lightweight U bike lock that has a 16 mm hardened ABS Steel shackle coupled with a 4 ft cable. The double bolt mechanism of the lock ensures extensive holding power and makes it literally impossible to break. The long 4ft cable helps you get added security when you lock your bike in public. The cable is of high quality and is made of steel with an extensive hard covering. With the lock, you get 3 laser cut aluminum alloy keys. Both the keys and the lock are tested and proved to withstand harsh climatic conditions. You will also get a mounting bracket to carry the lock by bike. Key Features: 16 mm hardened ABS Steel shackle | double bolt mechanism | 4 ft cable steel cable | lightweight | 3 laser cut keys | mounting bracket |

Lock is durable and strongValue for money

The mounts are wobbly and of low quality

UBULOX bike lock

The UBULLOX bike lock is a sturdy and durable bike accessory that comes with 16mm high-quality shackle and a double Bolt barrel. The bike lock is pretty powerful and can withstand harsh conditions and even brute force. The lock barrel is made of pure copper and has a design that prevents forced opening. The lock’s U bend comes with 3 non-rust keys that have a complex serpentine slot. Moreover, The Silicon cover on the bike lock makes it quite stylish and even acts as a protective layer against dust and dirt. Apart from the U-lock, you also get a 4 ft double looped steel cable which is coated with PVC. With this, you can lock not only the frame but also the tires. Key Features: 16mm shackle | double Bolt mechanism | Compact and easy to use | 3 non rust keys | 4 ft double looped steel cable | PVC protective coating

Strong and durableOffers good degree for protectionAffordable

Heavy and can cause stability issue to your bike at timesRequire separate mounting brackets for some eBikes

Titanker Bike Lock

The Titanker bike lock is yet another heavy duty U bike lock. It comes with a 12mm hardened Zinc alloy shackle that’s nearly unbreakable. It comes with the double bolt feature and has a 3.8mm thick PVC coating. The 16 mm Titanker bike lock comes with a 4ft long flex cable and a mounting bracket. The flex cable is durable and can help give your bike all-round safety. The mounting brackets are made of good quality plastics. You can attach the mount onto your bike frame. Unlike the ones you saw above, the Titanker bike lock comes with keyless entry. It has a 4 digital password combination that you need to set in order to use the device. The combination is covered by a dust cover that protects and extends the lock barrel life. Key Features: 12mm Zinc alloy shackle | double bolt mechanism | PVC protective coating | keyless operation | Password lock | Good quality mounting bracket | 4ft flex cable

AffordablelightweightDigital password lock

Stability issues

OnGuard Bike Lock

The OnGuard bike lock is a basic bicycle lock that offers moderate protection to your bike. It comes with a 13mm hardened steel shackle that goes into a double bolt cylinder. There is also a 4ft vinyl coated flexible steel cable that offers added protection. The X2P double bolt mechanism on the bike lock secures both sides of the shackle to the crossbar. This mechanism makes sure no force or jacking can literally break the shackle from the bolting cylinder. Comparing with the other bike locks on the list, the OnGuard bike lock isn’t as durable when it comes to reality. Yet, it is good for those who want moderate protection on a lightweight bike lock. Key Features: 13mm steel shackle | X2P double bolt mechanism | 4ft vinyl coated flexible | double bolt cylinder | Side mounting brackets

AffordableSecure and reliableWide shackle for more lock-up options

Flimsy mounting bracket

Foldylock Compact Bike Lock

The FoldyLock Compact Bike lock is not the old school bike looks you are familiar with. It is by far the most lightweight and compact bike locks that you will ever come across. It’s ideal for mountain bikes, road bikes, and the new eBikes. The anti-theft bike lock comes with a foldable set of steel links that are literally unbreakable. There are rivets ghat are designed to withstand harsh force from cutting equipment and other things. The folding bike lock design makes it easy to store and carry. You also get a frame mount that helps you carry the lock wherever you go. It helps you lock the tires onto the frame of your bike. A rattle elimination mechanism is also present on the device that eliminates shaking while it is mounted onto the bike. Key Features: Hardened steel link | Foldable steel design | easy to use | Bike frame protection | Weather-proof | Compact design |

Easy to carryNo complex mechanismsEasy to use

Not so strong

Amazer Heavy Duty Bike Lock

The Amazer U lock is made of 12mm hardened steel shackle that is covered by a 3” PVC coating. The Shackle coupled with the PVC coating makes it nearly unbreakable from leverage attacks and can resist cutting. The smart bike lock for all bike types offers keyless entry. You can set a 4 digit passkey and enable quick and easy operation that takes no time at all. The double bolt mechanism makes the bike lock pretty strong and durable. Unlike other premium bike locks, the Amazer U Lock is lightweight and easy to carry. You get an easy to fix mounting bracket that makes it easy to carry around. The alloy steel shackle, combined with the polycarbonate cylinder can withstand extreme force and pressure. Moreover, the device is quite weatherproof and can withstand harsh weather. Key Features: 12mm hardened steel shackle | Double deadlock mechanism | Keyless operation | 4 digit passkey | PVC protective coating | weatherproof design

Competitive priceEasy to carryDurable design

Not so longCan be tricky to connect

Kryptonite Keeper 785 Chain Bike Lock

The Kryptonite Keeper 785 is a chain bike lock that comes with a hardened deadbolt. Unlike other bike locks, this one here has a flexible 7mm chain that connects directly to the central lock cylinder. The cylinder is drill resistant and withstands harsh force. The durable steel chain is covered with a nylon cover to protect the bike from scratches. The whole unit is 2.7 ft long but is a bit heavy. Kryptonite Keeper is much secure than other chain locks in the market. Key Features: Chain lock system | hardened deadbolt | flexible 7mm chain | nylon protective cover | Comes with 3 keys | weatherproof design

Excellent protection to your bikeDurable and made of high-quality material

ExpensiveLimited locking optionheavy

Best Heavy Duty Bike locks – Buying Guide

 Buying new bike lock for your bicycle is important as it can avoid theft from public places. We have listed some of the heavy duty ones, as well as the chained, moderately rugged ones. You can choose from the list based on your needs, and considering the risk factor before you.

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