A good bike lock needs to be strong, sturdy, and reliable. Choosing a cheap lock and simple lock design can lead to some disastrous consequences for frequent cyclists, so it is important to pick the right one. A tricky combination to remember can be just as bad as a weak lock, so different people will have different preferences when looking for the right bike lock for them. For this reason, we have gathered some of the best bike locks in this handy article so you can see what is on offer.
Reliability and simplicity are the key points in picking a good lock. With this in mind, the following product reviews and buyer’s guide should give you a better idea of what you should look for, and where you can find it.
View the Best Bike Lock, Below.
- SIGTUNA Bike U Lock
- Kryptonite Kryptolok U-Lock
- Master Lock 8143D Combination Bike Lock
- Amazer Heavy Duty Combination Bike U Lock
- Kryptonite Keeper 785 Integrated Bicycle Lock
- OTTOLOCK Steel & Kevlar Combination Bike Lock
- Kryptonite New York Noose 1275 Bicycle Chain
- Via Velo Bike U Lock with Cable
- Kryptonite New York LS Heavy Duty Bicycle U Lock
- SIGTUNA Folding Bike Lock
1. SIGTUNA Bike U Lock
The first product in our list of the best bike locks is the SIGTUNA Bike U Lock. This is a classic U shaped lock that uses 16 mm of steel to secure your bicycle properly. U shaped locks are generally seen as the most reliable due to the rigid nature of the material, leaving no room for movement when used correctly. This U lock uses a traditional key system too, so you won’t worry about forgetting a combination.
The SIGTUNA Bike U Lock stands out because it comes with a steel flex cable included, which can be used to wrap around your bike with the lock. This can give extra security around the frame of your bike while the lock is attached to the wheel. It also comes with a mountain bracket, so you don't have to carry it around in your bag.
This is a reliable bike lock that comes with a steel flex cable for added security, so you don't have to rely on the 16 mm of steel alone.Check Price on Amazon ➞
2. Kryptonite Kryptolok U-Lock
The next bike lock on our list is the Kryptonite Kryptolok U Lock. Again, this is a classic U lock design that you can trust not to break and it offers sturdy support for your bicycle. It also comes with a handy steel cable for extra protection around the wheels. As well as the steel cable, the bike lock itself is particularly strong as it offers 12.7 mm of steel as well as a double deadbolt lock, which should be a match for any hand tools or bolt cutters,
Kryptonite offer further protection through the Key Safe program. This takes advantage of a global postal service in order to ship you some new keys if you lose them, provided you register them online first. The keys themselves are even designed not to break, so there should be no worries there.
Kryptonite offer extra protection for your keys through the Key Safe program. They also make their keys from stainless steel with minimum torque, so they won’t bend.Check Price on Amazon ➞
3. Master Lock 8143D Combination Bike Lock
Master Lock have produced this simple combination lock as a way of deterring any would-be thieves from stealing your bike. This is an affordable lock, so it should be said that this is mainly a deterrent. As a result, it is not too expensive. It does this well as it is simple and black, but with a sturdy design and a combination to put off thieves over a short period.
The long cable is self-coiling. This is a big benefit as it makes it easy to carry around, move into position, and even wrap around your bike when on the move. This cable is also coated with vinyl, which stops it from causing any damage to your bike's frame. With 8 mm of steel, this is a sturdy lock, but not quite as strong as most U locks, so should be treated as a deterrent for short term use only.
This is an affordable and simple combination lock that is subtle but intimidating enough to put off a potential bicycle thief.Check Price on Amazon ➞
4. Amazer Heavy Duty Combination Bike U Lock
Next up is this heavy duty U shaped lock from Amazer. This is another U shaped lock, offering sturdy, reliable 12 mm hardened steel to protect your bike from thieves. This steel is definitely strong enough to threaten criminals and would take some effort to break even with bolt cutters. It is also coated with PVC to ensure it doesn't scratch your bike or cause any other unnecessary damage.
The convenience of this U shaped lock should not go unnoticed. Unlike most traditional U shaped bike locks, this uses a combination rather than a key. This means you don’t have to worry about losing anything else, and you can customize the combination to something memorable easily. You can reset the combination at the flick of a switch. It also has a dust cover, so you shouldn’t find yourself trapped in your own lock.
This bike lock offers the security of a U shaped lock as well as the convenience of a combination, which you can choose yourself to help you remember.Check Price on Amazon ➞
5. Kryptonite Keeper 785 Integrated Bicycle Lock
Another Kryptonite product is their Keeper 785 bike chain. This is a bike lock that is designed to be affordable, but it still offers great security and great value. Firstly, like other Kryptonite products, it uses a double deadbolt lock. This is not uncommon amongst modern bike locks, but it is important as it ensures reliability. It is also pick and drill resistant, meaning that if somebody wanted to steal your bike, they wouldn’t get far without heavy-duty bolt cutters.
For protection against scratches, there is a nylon webbing sleeve around the chain. This is particularly important for chain locks as they tend to move around against the bicycle frame a lot. You also receive two keys for this bike so you can avoid losing them. Even if you do, they are part of the Key safe program. They are also stainless steel and shouldn't break.
This is a simple and affordable bike chain for use in less dangerous areas. While not as reliable as a U lock, it is pick resistant and protected.Check Price on Amazon ➞
6. OTTOLOCK Steel & Kevlar Combination Bike Lock
If you want a lock to look better, the colorful OTTOLOCK series could be right for you. These locks are not strong in comparison to most others, and should not really be used by themselves in dangerous areas. However, if you want something simple to take with you on an easy cycle, they can keep you safe while you make a brief stop.
As well as the range of colors, they are incredibly compact and lightweight. However, this is pretty much all they are good for. As a weaker lock, these can’t do much against big tools like bolt cutters. If you are only using them for convenience, you can enjoy the personalized combination, getting rid of the need for keys, and some confidence that this lock won’t scratch your bike due to the plastic coating.
This is a good bike lock for use as a fashionable, lightweight strap for carrying around with you, and could be used for other purposes, like holding a ladder to a car.Check Price on Amazon ➞
7. Kryptonite New York Noose 1275 Bicycle Chain
Another offering from Kryptonite is the New York Noose 1275 bicycle chain. This is a chain-type lock that offers even more strength than normal through the 13 mm steel shackles holding it together. It uses a Bent Foot design, which claims to be unbreakable, making it even harder for thieves to get through. It also has a soft nylon cover, which will be more than enough to stop you from scratching the frame.
The main benefit of this hefty bicycle chain is the way it looks. As well as being thick and strong, the chain looks threatening and should be enough to stop anyone from trying to steal the bike. It uses a classic key system, but they’ve made it even harder for you to get locked out. This time, Kryptonite have included a third key with integrated illumination, so you aren't in trouble if one goes missing.
Kryptonite have upped their game again with a 13 mm steel shackle chain and ultra-resistant lock with an extra spare key.Check Price on Amazon ➞
8. Via Velo Bike U Lock with Cable
This Via Velo bike lock is another classic U shaped lock that offers a high level of security for your bicycle. In fact, it has the thickest steel frame on this list, at 14 mm in diameter. This means it will be even tougher to break through and, more importantly, it will look too difficult to break as well. The double bolt lock offers the highest level of security available in a lock, and the whole thing is built to resist drilling.
This bike lock is covered in a rubber PVC coating, which will protect your bike from scratches while also making it slightly harder to cut through. Via Velo also give you two keys to use for the covered lock. This means you have a spare in case you lose one, and the lock won’t get jammed by dust and debris if you leave it outside or cycle through muddy fields.
This is a strong and durable bike lock which will resist corrosion in bad weather, as well as having one of the thickest and strongest frames available.Check Price on Amazon ➞
9. Kryptonite New York LS Heavy Duty Bicycle U Lock
The second bike lock in the Kryptonite New York series is the LS Heavy Duty U shaped lock. This is a classic U shaped lock that offers the same heavy-duty security as their chain option. In fact, this U lock has a security rating of 9/10 from Kryptonite, which makes it suitable for use in any metropolitan area. The lock itself is pick and drill resistant, and the steel shackle is a giant 16 mm thick, making it the biggest in this list.
For ease and efficiency, this bike lock comes with their flex frame transportation system. This means that you can attach it to your bike easily and take it with you on your travels. It also includes three keys and access to the key safe program, so they can be returned to you if necessary. One of these keys will have an illuminated fob to make it harder to lose.
This is a U shaped lock which offers the same level of protection as the strongest chains and has a security rating of 9/10 from Kryptonite.Check Price on Amazon ➞
10. SIGTUNA Folding Bike Lock
Finally, we have the SIGTUNA Folding Bike Lock. This is a completely unique design, as it is made to fold up for storage and transportation. This may seem complicated, but it is actually quite easy to use, and the rivets used for folding offer extra strength to keep its shape. It is even easier to carry around thanks to its mounting bracket, which lets you either strap it to your bike or screw it in place.
As well as being easy to carry, it also comes with 2 laser cut keys. The second can act as a spare if you are prone to losing them, and the lock itself is designed to resist any attempts to pick it. Furthermore, the whole bike lock system is covered in a soft plastic casing to protect the frame of your bike.
This bike lock comes in a unique fold-up design, making it easy to carry around while still offering sturdy protection and extra strength from the rivets.Check Price on Amazon ➞
Bike Lock Buyer’s Guide
As you can probably tell, there are a lot of different locks out there. While they vary in shape and size, it can be hard to know which ones will actually be useful in protecting you from criminals. Bike thieves won’t be bothered about how many spare keys you have or what color the rubber casing is, so you should get in the right mindset before making a purchase.
When it comes to security, you don’t want to take any risks. Especially if your bike is worth a small fortune, it is worth investing in the toughest lock possible. With that in mind, this buyer’s guide should give you some clues as to what features are important and what isn’t going to be worth your money. By looking through the different lock types available, you should figure out which is the best bike lock for you.
Looking to secure your home? Try a keyless door lock.
Different types of lock
The first thing to think about when buying a new lock for your bike is which type will do the trick for you. Before getting on to the lock itself, you need to decide on what sort of protection you need. Most bike thieves will want to make a swift cut through the material, holding your bike down, rather than waste time trying to pick a lock. Therefore, this decision can make all the difference.
There are three main types of bike lock available. The classic U shaped lock is often thought of as the most effective, but this is not necessarily the case. Usually, these have a sturdy steel design that locks around the frame or wheel of your bike in a U or D shape. The solid nature makes them seem more sturdy than a chain or cable. However, they can still break under pressure from big tools like bolt cutters, and the robust shape can be inconvenient for carrying around.
Alternatively, there are chain locks and cable locks. Bike chains are normally very big and threatening, but you need to ensure they won’t scratch your bike. Otherwise, they may cause more damage than they prevent. Cable locks are very convenient and can be just as sturdy. The best cable locks will coil themselves, so it is easy to put them in your bag or wrap them around your bike on the move.
Some other types exist, like the fold-up design from SIGTUNA or the more compact design by OTTOLOCK. These can offer some useful properties, normally regarding convenience of transport, but you should research them in advance. There is no point in having an efficient lock if it will not offer the same security.
How does it look?
Although there are many types of bike lock available, there is not yet an option on the market, which is absolutely guaranteed to protect your bike. In fact, with the right, heavy-duty tools and enough time, a criminal could probably break through most commercial bike locks eventually.
Nevertheless, this is not something you should be worried about. The aim of a bike lock is often to deter criminals rather than stopping them. When it comes down to it, the bikes that thieves don’t attempt to steal never get stolen. For this reason, a lock that looks strong and difficult will do a better job than a weaker, cheaper alternative.
You will still want to have the thickest and strongest lock that you possibly can, but it is important that it looks the part too. With the right bike lock, you can make any potential thieves think twice before they try to take your bike, as it just won’t be worth their time.
Key or combination?
Although a big heavy bike lock should be enough to stop criminals from wanting to take your bicycle, there is another problem. You need to be able to use it yourself. Combinations are great deterrents for criminals, as are complicated key systems, but you need to have a memory that is just as good.
When buying any sort of lock, you should always keep in mind that you need to have easy, convenient access, while making it as inconvenient as possible for others. For this reason, if your memory isn’t great, it might be better to have a simple key rather than a complicated combination. Then again, if you tend to lose your keys, you might be better off remembering a code.
Either way, a good bike lock should help you solve this problem. If you want a key lock system, find one with spare keys, a protection program, or maybe even an illuminated fob. If you’d prefer a combination lock, make sure you can customize it yourself to a memorable number.
Looks aren’t everything, but while an attractive lock won’t save your bike, a large and heavy lock could be enough to scare off any thieves.
Did You Know?
Many people find themselves trying to break their own locks after losing a key. Try to find a key protection scheme or make sure you have a memorable combination.