The best bike locks

  • A reliable bike lock should give you the peace of mind to leave your bike almost anywhere and that it'll be there waiting for you when you get back. 
  • The best bike locks do this by featuring designs that have thick steel shackles or cables that make stealing a bike a long and arduous task (or impossible), are durable enough take a beating, and are built to last. 
  • Our top pick, the Kryptonite New York Fahgettaboudit Mini Bicycle U-Lock, features anti-theft protection, is easy to mount to your bike, and has a useful double-bolting system.

Whether you live out in the country or in a major metropolitan area, there is no bike lock system that will stop a well-equipped thief. However, there are a number of locks that will either slow down or completely discourage a criminal.

Though some thieves will try to drill the lock, the most common way bikes are stolen is when crooks cut through the lock's shackle, cable, or chain. Of these options, the shackle of a U-lock is the hardest to cut through. The thicker the steel, the longer it will take to get through. Also, if the lock has a double bolt system, then the robber will need to make two cuts to free the bicycle.

If the idea of slowing down a thief or hoping to just discourage them with a bulky lock is not enough to let you rest easy, there are a few products you might consider adding to your bike protection arsenal. Though they are still relatively primitive and expensive, GPS tracking devices can help you track down the location of a stolen bike.

Of course, locating your bike is half the battle. We do not recommend confronting thieves. The Scout Universal Vehicle GPS Tracker is one of the highest-rated trackers available. But, as with most GPS Trackers, you will have to pay a monthly service fee. You might also consider the Pinhead Bicycle Locking Skewer Set to thwart wheel thieves.

How we test

Each of the following bike locks went through several rounds of field testing to make sure they not only provided a reliable method for locking up our bike but that they were easy to use, weren't a pain to lug around, and offered enough value regardless of their price tag. Specifically, we looked at these five categories: Ease of use, durability, security, and value. Here's how each category factored into what locks made the cut:

  • Ease of use: Using a bike lock shouldn't be a headache each time you lock and unlock your ride. This means that it should be easy to affix to a bike rack while still being able to secure valuable parts of your bike (i.e. the wheel) without it feeling like solving a Rubik's cube. 
  • Durability: What good is a bike lock if it starts to fall apart mere months after you purchase it? Bike locks take a beating, whether it be while getting throwing into a backpack or vehicle, someone attempting to disassemble it, or being stored at home in a garage or closet. You want any lock you purchase (especially since you're spending hard-earned cash) to last you several years, at the very least. 
  • Security: If a bike lock is easy to break into, then what's the point? A reliable bike lock should be able to stand up to a variety of bike-stealing methods and not only continue to protect your bike but be able to continue to live up to its namesake. 
  • Value: Value isn't just about how much a bike lock costs — it's more about how much return you get on your investment. If you pay a premium price, you should expect premium features. This is sort of like the sum of all the categories before it (while still considering its sticker cost). 

Over the course of several different rides, including mountain bike trips, e-bike outings, or just casual rides around the neighborhood, we tested a wide range of locks from brands like Kryptonite, Hiplok, and Titanker. Here are our favorites. 

Here are the best bike locks:

  • Best bike lock overall: Kryptonite New York Fahgettaboudit Mini Bicycle U-Lock
  • Best bike lock on a budget: Titanker Bike Lock Cable
  • Best D-lock bike lock: Hiplok DX
  • Best U-lock/cable bike lock combo: Kryptonite Kryptolok Standard Bicycle U-Lock w/ 4-foot Flex Cable
  • Best on-bike bike lock: Lobster Lock

Updated on 06/19/2019 by Les Shu: Removed the Sigtuna Heavy Duty Bicycle U-Lock with Cable as our "best heavy duty U-lock on a budget" because it is no longer available.

The best bike lock overall

If you live in a high crime area, the Kryptonite New York Fahgettaboudit Mini Bicycle U-Lock does an excellent job of warding off criminals and protecting your bike.

Kryptonite is the top name in the bike lock industry. That's why we've included three of its locks in our guide. One of the factors that set Kryptonite apart is its Anti-Theft Protection Offer. Basically, when you get your lock, you must register it with the company right away. Then, if your bike is stolen while it is covered by the anti-theft protection, the company will pay to replace your bike. For the Fahgettaboudit Mini, the first year of registration is free. After that, it is $24.99 for five years of coverage.

The New York Fahgettaboudit Mini offers the highest level of security of any of Kryptonite's locks according to the company. The shackle is made of 18-millimeter hardened "MAX-Performance" steel. For extra security, the crossbar has an oversized hardened steel sleeve. The lock comes with three keys, which disengage the lock using a high-security disk-style cylinder. The cylinder is protected by a sliding dust cover. And, the center keyway is designed to make leverage attacks difficult.

Many industry experts state that the New York Fahgettaboudit bike lock is one of the best options on the market. The only reason The Wirecutter rated this model as its second pick is that it is so heavy at 4.55 pounds. Other than that, the reviewers liked that the shackle is thick and would require a thief to make two time-consuming cuts to steal a bike.

Consumer Search found this to be the top option for the above reasons as well as the location of the keyway in the center instead of the side, where most locks locate it. The Best Bike Lock ranked this Kryptonite model one of the most secure mini U-locks.

Around 84% of the reviewers on Amazon give the Fahgettaboudit Mini either 4 or 5 stars. Buyers are impressed with how heavy duty and secure the lock appears. The biggest complaint is that the U-lock is fairly small. This is helpful for security, but it does make it hard for you to lock up all of the elements of your bike, including your seat post and seat. Users recommend that you buy multiple U-locks or a cable to lock to the U-lock. Also, one verified purchaser pointed out that Kryptonite does not honor any guarantees if you do not register your lock.

Pros: Takes longer to cut through than any other lock

Cons: Small, heavy

The best bike lock on a budget

If you live in a low-to-moderate-crime area, the Titanker Bike Lock Cable is an affordable alternative that offers a variety of locking options.

The Titanker Bike Lock Cable is made of flexible steel cables that measure a half-inch in diameter. The 4-foot cable is covered with PVC coating and recoils back into its original shape when not in use. The four-digit combination lock has 10,000 possible passcodes. This lock is the lightest option in this guide at 11.2 ounces, and it mounts to your bike with the provided bracket.

The cable design offers flexibility in what you can lock a bike to, and the combination key is also convenient. While a lock is a good deterrent in general, this option doesn't offer the level of protection as the other locks on this list. We recommend this lock for people who live in areas with low-to-medium crime. Otherwise, you should consider spending more for a heavier-duty lock. Still, the thick cable should deter most thieves.  

The Titanker Bike Lock Cable has more than 3,000 reviews on Amazon, with 65% of them giving the lock a 5-star rating. Users with positive experiences like the build quality and the nice rotating combination dials, while 13% of one-star commenters didn't think the cable was solid enough and wouldn't recommend for city use.

Note: We previously recommended the UShake Bike Lock Cable, which is nearly similar to the Titanker option. Although many reviewers also recommended the UShake, that lock is not available at time of posting.

Pros: 10,000 possible combinations, four-foot reach, flexible

Cons: Cable is relatively easy to cut

The best D-lock bike lock

The Hiplok DX is a heavy-duty D-lock designed to keep your bike secure no matter where you lock it up, and its lightweight design makes it easy to throw into a backpack or even to wear on your person.

Hiplok is one of the who's who in the bike lock industry (we've written about, and loved, its Z-Lok) thanks to its wide selection of dependable products. With the DX, Hiplok not only offers one of the most heavy-duty D-locks on the market, but it challenges the Kryptonite lock that nabbed our top spot. 

What makes the DX particularly stand out is its rugged and durable design, led by a double deadlock and 14mm hardened steel shackle that would take nothing short of a tank to break through it. This means you should feel comfortable locking up your bike anywhere and can rest assured it'll be there waiting for you when you're reading to ride again. 

It's also one of the most lightweight locks we've tested and can just as easily slip into a backpack or affix to our belt loops without seeming like we're dragging an anvil. The DX offers up a sizable locking area, as well, which can easily slide through your tire and around a pole. 

At $90, it's not a budget pick, but with bike locks, you pay for premium quality (and the assurance you won't have to spend hundreds on a new bike). Hiplok offers a lifetime warranty, so that $90 investment should last you a very long time. – Rick Stella

Pros: Heavy-duty yet lightweight design, 14mm steel shackle prevents theft

Cons: Locking area might be small for bikes with bigger tires

The best U-lock/cable bike lock combo

The Kryptonite Kryptolok Standard Bicycle U-Lock w/4-foot Flex Cable is one of the most affordable locks, and the 4-foot cable makes locking up easy.

The design of the Kryptolok Standard Bicycle U-Lock is fairly similar to the Kryptonite locks we covered in previous slides. It has a center keyway, high-security disc-style cylinder, reinforced hardened crossbar, and a hardened MAX-Performance steel shackle. However, there are some key differences. The shackle is 13 millimeters thick, the U-lock is 4 x 9 inches, and there is not a double locking mechanism.

Kryptonite rates the security of the Kryptolok as 6 out of 10 (versus 9 for the New York Standard and 10 for the Fahgettaboudit Mini). The company states that it should be secure enough in rural areas, in the suburbs, and when traveling with your bike on a car rack.

The Best Bike Lock rated the Kryptolok as the "best mid-security lock" because it is strong enough to dissuade criminals without being too expensive or heavy. However, the reviewers didn't like that the U-lock isn't double locked so it only takes one cut of the shackle to remove it. Outdoor Gear Lab called this model a "best buy" and praised the ease of use and versatility. The reviewers recommend this U-lock if you will mainly be locking your bike up overnight in rural areas or during the day in college towns or urban areas.

The Kryptolok U-Lock has more than 2,000 reviews on Amazon, with 78% giving it 4 or 5 stars. Buyers like that it works well in areas with little crime, the mounting mechanism is easy to install, and the lock is lightweight compared to other U-locks (approximately 3.3 pounds). However, there are several users that have had their bicycles stolen while using this lock for long periods of time in metropolitan areas. They also report that they didn't have much luck getting Kryptonite to cover the cost of replacing their bike. Remember to register your bike lock with them immediately after you purchase it to take advantage of their theft protection program.

Pros: Easy to use, lightweight, inexpensive

Cons: Only requires one cut to defeat

The best on-bike bike lock

The Lobster Lock permanently attaches to your bike frame so you'll never have to worry about forgetting to grab a lock on your way out the door.

We've all been there: You're getting ready for a ride, you've packed a backpack, grab your helmet, and jet out the door. As you get to your destination, you realize it; you forgot your bike lock. Now, you're left with a decision, do you leave the bike there and quickly run inside to get what you need, or do you ride back home? With the Lobster Lock, those forgetful moments cease to exist.

Thanks to a design that allows you to permanently attach it to your bike's frame, the Lobster Lock goes wherever your bike goes, all day, every day. By attaching to where you'd put a water bottle cradle, the lock is able to stay out of the way enough to avoid hindering you as you ride, yet is perfect for attaching to a bike rack (including through your wheel, too).

Using the lock is easy, too. By simply unlocking it with a key, two arms swing out from the base and attach to each other to create the lock. When you're reading to ride again, just unlock the two arms from each other, fold them back into the base, and lock it again with the key. Simple as that. 

Also, don't think you have to sacrifice the water bottle cradle — it basically acts as an extension of that area as you're able to affix a cradle to the lock itself. That's a ton of convenience packed into one bike lock. – Rick Stella

Pros: Attaches to your bike permanently so you'll never forget a lock, easy to lock/unlock, inexpensive $75 price tag

Cons: Can rattle on your bike a little bit while riding

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Disclosure: This post is brought to you by the Insider Reviews team. We highlight products and services you might find interesting. If you buy them, we get a small share of the revenue from the sale from our commerce partners. We frequently receive products free of charge from manufacturers to test. This does not drive our decision as to whether or not a product is featured or recommended. We operate independently from our advertising sales team. We welcome your feedback. Email us at [email protected].

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