Best Bike Lock [2019]


Best Overall: ONGUARD Brute STD U-Lock
When you want the strength of a BRUTE, you go with this u-lock from ONGUARD. It is super-strong, built to last, with special protection against drilling attacks that makes sure your bike will remain where you left it. It’s pretty much indestructible and while most other locks on this list wouldn’t have a chance against a hydraulic cutter, the Brute bike lock actually holds up. This is the most secure lock we could find.



  • 97 Out Of 100 Security Rating
  • Shackle Locks On Four Sides For Increased Security
  • Specialized “Z-Cylinder” Protects From Bumping And Drilling Attacks

Premium Pick: ABUS Bordo 6100/90 Folding Lock
This one won’t beat our overall winner in terms of security, but it provides quite a lot more flexibility. Just to be clear, this lock is by no means insecure. It’s still one of the best rated locks on the market in terms of security and most thieves wouldn’t even try breaking it, as these ABUS locks are notorious for being pretty much unbreakable. Most bike shops recommend them and you can’t really go wrong with it. If you need a bigger lock than the Brute, the ABUS Bordo is the way to go.

Budget Pick: ETRONIC M6 Self-Coiling Cable Bike Lock
At less than $20, this is a great option for those who need a bike lock with plenty of length. The four-digit combination makes it easy to come up with a combination that will be hard to break. That being said, let’s face it: if someone really wants your bike and has tools with him, this lock is not going to stop him. However, if you have a cheap bike and just need something to scare away those “casual thieves”, it’s a decent option for the money.

How We Picked

If you don’t have a car, and if you don’t want to use public transportation for everywhere you go, your bike could possibly be the only other means you have of going from Point A to Point B without walking.

But if someone were to steal your bike, you would be in a bind…as in you would literally have no other means of going places other than walking.

Therefore, having bike locks is necessary if you have a bike and use that bike on a day-to-day basis. Don’t tell yourself that your bike will never be stolen, because bike theft happens numerous times each day.

There are plenty of bike locks on the market to choose from. The only problem is precisely that: because there are so many to choose from, which one do you get?

Do you just grab the first bike lock off the shelf at your closest store? You could, but you shouldn’t. Even though bike locks may seem like simple devices, the truth is not all bike locks are the same, and some are much higher quality (or lower quality) than others.

Some are designed to be lightweight and portable (but also less secure) while others are built like tanks (and are therefore more secure). If you get the wrong bike locking device, you could be left with a bare spot where your bike used to sit, because a thief could make short work of the lock. To prevent that, you need the perfect bike lock for your daily life and we picked our top ten.

#1 BILLCONCH U-Lock (Fingerprint)

BILLCONCH U-Lock (Fingerprint)


  • Style: U-Lock
  • Locking-Mechanism: Fingerprint + Key
  • Weight: 3.6 Pounds

The first lock we are going to look at is one that sticks to a simple design. The u-style is one of the best locking styles on the market with its strength and portability. Making the u-lock better would be almost impossible, and yet the BILLCONCH U-Lock Fingerprint Lock does just that.

Before we get into the improvements, we want to talk about the standard features of this lock. For starters, it is a u-styled lock. These are considered the “best of the best” for security as they are generally thick and hard to cut through. The baseplate/lock attaches to the u-frame, generally between the wheel and the frame, making it impossible to move the bike more than a few inches. The one major downside of u-style locks is the fact that they aren’t the most “portable”; they can’t wrap around the bike frame like cable locks. Even so, this can easily be stored in your backpack as it only weighs 3.6 pounds. If you like a little flavor in your life, this comes in two color options: black/black or black/red; the black/red combination looks amazing.

BILLCONCH U-Lock (Fingerprint) color options

Now, it is time to talk about some of the major features that separate this lock from everyone else. First off, this is a fingerprint lock that will unlock in less than one second with just a touch from your finger. In fact, it can hold up to 40 different fingerprints so your family can use the lock too (and your friends).

BILLCONCH U-Lock unlocked with fingerprint sensor

The fingerprint sensor is powered by a rechargeable lithium-ion battery that can be recharged using a USB cable. In case you were wondering, the lock has a low-battery indicator to let you know when it is time to recharge. If the battery does die, you are not in trouble as they also include two spare keys. And if that was not enough, the lock also works with your smartphone using the downloadable app from the Apple and/or Google stores.

BILLCONCH U-Lock unlocked with smartphone

Other features that make this a great lock for your bike is the 30mm heavy-duty cable. The shackle itself is made of hardened steel and designed to take plenty of abuse from thieves; in fact, it can handle up to 10 tons of pressure! Another great feature of this lock is the IPX6 waterproof rating making it suitable in any type of weather.

What We Like

For starters, this is an improved u-lock using newer technology. The fingerprint scanner is a great addition to an already strong design. The included Bluetooth + app connection makes this one of the easiest bike locks to work with.


It is time to move into the 21st century! The BILLCONCH U-Lock is the perfect blend of old-school design paired with new-school technology. Built to keep thieves at bay, your bike in place, and look good while doing it. While it may be a little pricey, it is worth every penny.

#2 FOLDYLOCK Compact Extreme Bike Lock

FOLDYLOCK Compact Extreme Bike Lock


  • Style: Folding
  • Locking-Mechanism: Key
  • Weight: 2.2 Pounds

Sticking with the unconventional approach, the next lock looks unique. When folded up, it looks nothing like a bike lock. But, when it is unfolded, it looks like a super strong set of connecting rods that will easily protect your bike from thieves.

FOLDYLOCK Compact Extreme on a bike frame

The FOLDYLOCK by Seatylock is a blend of two different lock designs: the u-lock and the cable-lock. The u-lock design is regarded as one of the most secure locks on the market due to their thick, rigid lock bars. The cable-lock design is not as secure, but they are flexible which makes them great for versatility. Folding locks can incorporate the security of a u-lock with the versatility of a cable-lock.

FOLDYLOCK Compact Extreme Bike Lock in storing compartment

The FOLDYLOCK comes with a mounting case and mounting strips that make storing/riding with it a breeze. Once it is mounted, you simply slide it into the case when it is not in use and drive off; it won’t rattle and/or scratch your bike at all. If you are worried about added weight, this is light at only 2.2 pounds. As for color options, it comes in one of three color options: black/black, black/gray, black/orange. Our favorite color option is the black/orange option as this stands out the most.

FOLDYLOCK Compact Extreme Bike Lock accessories

Again, the FOLDYLOCK is designed to combine the best of the u-lock and the cable-lock. As such, they make sure to include hardened steel links to withstand most cutters with ease. Plus, the rivets use a special VSR technology that can stand up to hacksaws, bolt cutters, and drills. Taking it a step further, the lock also incorporates anti-drilling technologies in the lock cylinder itself so you can leave it on the rack longer without having to worry about it being gone when you get back. When it is unfolded, it will reach out to a maximum of 33.5 inches, giving you about half the length of a cable-lock setup.

What We Like

This is a great blend of cable-lock systems and u-lock systems. The links are extremely thick with plenty of cut resistance, but they are also flexible/moveable making it easy to hook to numerous fixed points. When the lock is closed, it almost fades away into the bike frame.


For those who love u-lock designs but hate the lack of flexibility and versatility, the FOLDYLOCK by Seatylock is perfect. It opens up to a maximum of 33.5 inches giving you plenty of room to work with while giving you ultra-thick links designed to keep your bike attached to racks and street poles without having to worry that it will still be there when you get back.

FOLDYLOCK Compact Extreme Bike Lock

  • Combines The Best Features Of A Cable-Lock And A U-Lock
  • Built-In Anti-Drilling Cylinder And Other Components
  • Folds Up For Super-Simple Portability

#3 Kryptonite New York U-Lock

Kryptonite New York U-Lock


  • Style: U-Lock
  • Locking-Mechanism: Key
  • Weight: 4.41 Pounds

Next up, we are going to talk about another u-lock with an impressive history in the lock industry. Kryptonite has consistently created some of the most durable and trustworthy locks on the market today. The New York U-Lock is designed for heavily-trafficked areas where you will need a lot of protection.

Kryptonite New York U-Lock on a bike

As for the standard features, this is a simple u-lock design without any extra features like fingerprint systems. The shackle is a whopping 16mm for increased protection from cutters and other theft attempts. The crossbar utilizes a “pass-thru” design that helps to prevent rolling/twisting attacks. The lock cylinder has security-specific anti-drill properties to prevent drill outs and other penetration techniques. And, it comes with three keys to keep on you, at your home as a backup, and with a friend for another backup; one key has an LED built-in to make it easy to see even in dark areas.

Kryptonite New York U-Lock keyhole

Now, onto the features that make this lock stand out. This is one of the most secure locks on the market with a 9 out of 10 rating on the security scale; this means it can last up to 9 hours in a heavily-trafficked area without being stolen/penetrated. Next, Kryptonite will send you two extra keys for free through their Key Safe Program if you lose and/or destroy your old keys. And, if your bike does manage to be stolen, Kryptonite will reimburse you up to $4,000 through their anti-theft protection plan (one-year included for free). The lock itself comes with a lifetime warranty so you are covered no matter what life throws at you.

Kryptonite New York U-Lock used for locking bike in the city center

What We Like

This is a heavy, bulky lock that can take some serious abuse. The 16mm hardened-steel shackle is thick, able to withstand plenty of abuse without giving in. The fact that Kryptonite stands behind their product with a $4,000 reimbursement plans shows how dedicated they are to this lock.


A lot of companies can say they have the best locks on the market, but the best companies put their own money on the line. With up to $4,000 in reimbursements if your bike gets stolen, there is not much to worry about when you lock your bike up the with New York U-Lock from Kryptonite.

Kryptonite New York U-Lock

  • 9-Hour Security Rating
  • $4000 Reimbursement Program
  • Key Safe Program Will Ship New Keys If You Lose Your Old Ones

#4 ABUS Bordo 6100/90 Folding Lock

ABUS Bordo 6100-90 Folding Lock


  • Style: Folding
  • Locking-Mechanism: Combination + Key
  • Weight: 2.76 Pounds

Even though we just talked about another folding lock above, this lock from ABUS is another viable option that you might prefer. This is another hybrid/blend locking design that gives you both security and style in one convenient package. The Bordo lock comes with a mounting case and straps to make it easy to store when not in use.

ABUS Bordo 6100-90 Folding Lock on bike

At only 2.76 pounds, this will easily ride along with you without weighing you down. And while the last lock came with multiple color options, this only comes in one: black.

Trying to break the ABUS Bordo

The 5mm steel bars are designed to withstand all types of torture, racking up an impressive level 9 security rating which puts it in rarified air with the Kryptonite locks. The rivets themselves are built using a patented technology to protect them from drilling, cutting, pinching, etc. The lock cylinder has anti-drilling features built-in to protect from penetration and/or cracking techniques. Unfolded, you do get a little bit more from this when compared to the FOLDYLOCK with 35.0 inches of full length. And if you forget the combination, you can unlock it with one of the two included keys.

ABUS Bordo 6100-90 Folding Lock illustration

What We Like

The folding design is extremely compact and easy to use. It has more than enough reach at 35.0 inches to reach around most street poles and/or bike racks. The level 9 security rating is impressive as most folding locks cannot achieve this rating; in most cases, only u-locks can achieve this rating.


While the FOLDYLOCK is a great option, the Bordo from ABUS is built like a tank! With a 9 security rating, there isn’t much to worry about when your bike is locked up with this lock. For those who don’t like key only systems, this four-digit combination lock will easily fit the bill. It might be a little expensive, but what it offers should easily overcome any “issues” you have with the price.

#5 ETRONIC M6 Self-Coiling Cable Bike Lock

ETRONIC M6 Self-Coiling Cable Bike Lock


  • Style: Cable
  • Length: 6 Feet
  • Locking-Mechanism: Combination
  • Weight: 1.2 Pounds

The M6 from ETRONIC is a cable-styled bike lock that stands out for more than just its color choices. Cable-style locks like the M6 are considered extremely versatile as they can be used for several applications beyond just a “bike lock”; this is one reason they are so popular. The cable on this lock is six feet long with a 10mm diameter/thickness. At 10mm thick, a thief would need a pretty strong pair of bolt cutters to get through this. The added vinyl covering also helps to protect from rain, water, and some smaller cutters. For those looking to add a little color to their lives, the M6 can be purchased in black, blue, green, pink, or orange. The locking mechanism is a four-digit combination lock that comes preset at 0000. Changing the combination is a four-step process:

  1. Unlock the cable using 0000 (or other code).
  2. Turn the “SET” knob clockwise to the designated position.
  3. Turn the dials to the combination you prefer.
  4. Turn the “SET” knob back to the original position.

Looking at some of the other features of the M6 lock, we find that it comes with a mounting bracket that makes it easy to keep it with you/your bike wherever you go. Most people will wrap it around their frame, but this can take time to unwind. The included mount makes it easy to keep it with you without spending a lot of time winding it up/taking it off. The fact that it is self-coiling also helps with portability as you won’t have to wrap it up yourself.

What We Like

This is a simple lock with a thick 10mm cable to prevent cuts without costing a fortune. The four-digit combination lock will keep most thieves at bay and the bright color options let everyone know this is protected.


While it is not the most advanced security lock in the world, it is a lock that will keep most people away. With six feet of cable, you’ll be able to wrap it around just about anything you want (with room to spare). For the price, it is a great value buy and the reason why it made our “Best Value Pick”.

#6 Kryptonite Kryptolok 12.7mm U-Lock

Kryptonite Kryptolok 12.7mm U-Lock


  • Style: U-Lock + Cable
  • Locking-Mechanism: Key
  • Weight: 3.59 Pounds

The u-lock design will dominate our list because it is the most secure of all the locks. The Kryptolok is another lock from Kryptonite (one of the most dominant brands) that made our list; honestly, they could have all their products on our list and that would be okay).

For some, having an almost five-pound lock like the New York is a little too much. And while they still need security, they may not need 8+ hours of protection. Which is why the Kryptolok is a great choice. This u-lock system from Kryptonite only weighs 3.59 pounds (about 25% less than the New York). The shackle is still stout, coming in at 12.7mm (about 25% less than the New York). It comes with a “Flexframe-U Bracket” that mounts to your bike making it easy to transport the lock when it is not in use. To slow down thieves, they’ve also included two hardened deadbolts with a locking crossbar. The drum cylinder has anti-theft features built-in to protect against drilling and bumping attacks. On the security scale, this rates a 6 out of 10, giving you up to 6 hours of protection.

Kryptonite Kryptolok 12.7mm U-Lock packaging

As with most Kryptonite products, you gain access to the Key Safe Program which will replace your first two keys for free. You’ll also gain access to the Anti-Theft Protection Offer which will reimburse you up to $1,750 if your bike is stolen. And, your lock is covered by a lifetime warranty through Kryptonite.

What We Like

It is lighter than the New York while still providing a reasonable amount of protection. Since it is lighter than its big brother, it is a little more portable.


When you want to go with a trusted company, you choose Kryptonite. All their products are built like tanks and designed to protect your assets. The Kryptolok will keep your belongings where you left them – without weighing you and without hitting your wallet too hard.

Kryptonite Kryptolok 12.7mm U-Lock

  • Dual Hardened Deadbolts
  • 12.7mm Steel Shackle Provides Up To 6 Hours Of Protection
  • Covered By The Anti-Theft Protection Offer For Up To $1,750 In Reimbursements

#7 Crystal Vision SHBLA 130db U-Lock

Crystal Vision SHBLA 130db U-Lock


  • Style: U-Lock
  • Locking-Mechanism: Key
  • Weight: 2.93 Pounds

Yet again, another u-lock made our list. This time, it is not because it can withstand theft attempts for 10+ hours, but rather stop it almost immediately. To do that, it emits a super-loud noise capable of producing 130db of ear-piercing noise when it detects movement. At 130db, most humans lose the ability to think (much less steal). Not to mention, that much noise will definitely draw attention to the thief which is not what they want. If you were to use this at night, you would surely hear it and know something was wrong.

And while the noise feature is the best feature, it is not the only feature. The shackle is thick at 14mm and a carbide-reinforced, hardened-steel locking pin. Plus, it is waterproof for all types of weather. The battery that powers this will last for up to one year and it can be replaced easily with another CR2 battery if it dies. It also comes with a mount to keep it with you when it is not in use.

Crystal Vision SHBLA 130db U-Lock on a bike

What We Like

At 130db, no one will be able to focus on stealing your bike. Unlike most other locks, this one tells everyone around that something is wrong. The siren is so loud, that you will hear it at night even if you were “sound asleep”.


There is an old saying that “it is not over until the fat lady sings.” Well, thieves will never get a chance to steal your bike if you have the Crystal Vision SHBLA 130db U-Lock. The siren will belt out a shrill noise at an unbearable volume. It will literally run off anyone with nefarious intentions.

#8 Lumintrail 18mm 5-Digit U-Lock

Lumintrail 18mm 5-Digit U-Lock


  • Style: U-Lock + Cable
  • Locking-Mechanism: Combination
  • Weight: 3.8 Pounds

So, what makes this u-lock different from all the others? Well, for starters it has an 18mm steel shackle that makes cutters and hacksaws work overtime. Next, it comes with a five-digit combination lock (the rest on our list were only four-digit) giving you more number combinations and making it harder for a thief to crack. And finally, it does not have a keyhole that can be drilled and/or bumped.

Lumintrail 18mm 5-Digit U-Lock on a bike

But, that’s not all. In fact, you can choose from one of three colors: black, bright green, or bright orange; we like the green option the best this time. Next, you also get a seven-foot 12mm cut-resistant, steel security cable to give you a few more lockdown options. The built-in dust cover protects the lock mechanism from dirt, debris, and even water.

What We Like

With an 18mm shackle, there is not much that will get through this. The bright colors will grab attention and the five-digit combination will make it a lot harder for crooks looking for an easy score.


If a four-digit combination was not enough for you, then how about a five-digit combination instead? The Lumintrail 18mm U-Lock is built to give you tons of protection without breaking the bank. If you want a little more security, here it is!

#9 ONGUARD Brute STD U-Lock



  • Style: U-Lock
  • Locking-Mechanism: Key
  • Weight: 2.5 Pounds

For those who don’t know, sometimes you just have to be a BRUTE. The Brute lineup is one of the strongest lock lineups in the world with an impressive 97 of 100 security rating. In fact, you can get their locks in one of three sizes: LS – Long Shackle, STD – Normal Shackle, or Mini – Small Shackle. To keep this an apples-to-apples list, we are discussing the STD lock from ONGUARD.

Again, the u-lock design is the best when it comes to security. Even so, the BRUTE manages to squeeze out even more with an ultra-thick 16.8mm shackle for extreme protection; in fact, this is more than any other shackle on our list included the Kryptonite locks. To keep everything locked down like Fort Knox, the bolt-locking mechanism locks down on four sides using their patented design/technology. To prevent bumping and/or drilling, they have incorporated a specialized Z-cylinder. To prevent prying and ripping, they even rounded all the edges making it hard to grip and/or snap.

ONGUARD Brute STD U-Lock on a bike

While the New York like from Kryptonite has a great rating, the BRUTE from ONGUARD has more. The shackle is thicker with extra protections built-in. The rounded edges and specialized cylinders give you even more time before a thief “would be” successful. The keyway cover helps to protect against water and weather so your lock works for a long time. For those who need extra keys, this one comes with five: one LED micro-light key and four standard keys.

What We Like

With a shackle that is thicker than any other on the market right now, it is hard to argue with the security value. Even though it does not come with a protection plan and/or a reimbursement plan, the amount of time a thief would have to work makes up for it.