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A premium bike lock is essentially a one-time insurance premium that protects you from the massive financial and emotional headache of a stolen ride, ensuring your freedom of movement remains right where you left it.
The best bike lock overall is the Litelok X1 that brings cutting-edge technology at a “friendlier” price point.
For the ultimate in bicycle security, choose the Litelok X3, the toughest lock we tested, which took nearly 8 minutes to defeat. However, it's quite pricey.
Folks seeking a budget lock should check out the Kryptonite KryptoLok, which isn't as secure but still took 20 seconds and two cuts with our angle grinders to defeat.
While we think most people will be well served by one of those three locks, we also review the best cable locks, best chain locks, best lightweight locks, and a couple of wearable locks for easy transport.
Editor's Note: Our bike lock review was updated on February 11th, 2026, to include the latest locks on the market and to retest some that have been updated.//
21-24m, Barronium (patent pending composite material), high tensile steel
The Litelok X1 serves as the more accessible, lightweight sibling to the heavy-duty X3, yet it still delivers industry-leading security through its innovative Barronium ceramic-composite armor. This is in an entirely different category than most hardened steel locks; the X1 ate multiple cutting wheels for more than seven minutes of sustained angle-grinding. This lock provides tool-destroying security at a far more palatable price point than the X3. It's an especially good choice for high-value e-bikes in urban centers where professional thieves are common.
At a manageable 3.7 pounds, it is significantly easier to carry than its larger counterparts, though it shares the drawback of not including a frame mount at the base price; you'll need to figure out how to carry it on your own. While standard locks like the Kryptonite New York series offer better initial value for those on a strict budget, they simply cannot compete with the X1's grinder-shredding technology. Ultimately, the X1 provides about 90% of the X3's legendary protection at roughly 40% less cost, making it the smartest investment for serious urban security in 2026.
There is little difference in how long it takes to defeat most locks; the Litelok is not like most locks. You can see our cutting wheel disappear as it moves into the Barronium. Credit: Matt Lighthart
24-26mm, Barronium (patent pending composite material), high tensile steel
The Litelok X3 is currently the “boss” of bicycle security, redefining expectations with its ceramic-composite Barronium armor that actively destroys angle-grinder discs. While traditional steel locks like the Kryptonite New York series fall in under a minute, the X3 famously survived five discs and eight minutes of sustained cutting in our 2026 testing, earning it our highest recommendation for maximum security. If you are protecting a high-value bike in a high-risk area, this is the definitive gold standard.
It's not easy to carry; at 4.7 pounds, it's a lot to lug around, and the premium price tag may give you sticker shock. Litelok sells a frame mount separately if you want to maintain space in your backpack. While you could save significant cash with a Kryptonite New York Standard or Mini, those traditional steel locks simply cannot match the X3's grinder-shredding Barronium armor. Ultimately, if you're anchoring a high-value ride in a high-theft zone or a vulnerable shared shed, the X3 should provide more peace of mind than any other lock on the market. If this feels like too much lock, or to much of an investment, check out the Litelok X1, it's almost as secure and costs about 40% less.
Although it proved to be a formidable match for the angle grinder, the LITELOK X3 was not uncuttable. It did take 2 separate cuts, 8 grinder discs, and almost 8 minutes to fully defeat this titan of U-locks. Credit: Jon Oleson
The Kryptonite KryptoLok is our premier recommendation for riders seeking high-tier security on a budget, perfectly balancing size and versatility. Tester Luke Hollomon notes that its dimensions hit a “sweet spot,” offering more locking options than a mini-lock without the cumbersome bulk of a full-sized unit. Unlike other entry-level options that leave the shackle vulnerable, the KryptoLok's 13mm hardened steel construction is robust across both the U-section and the crossbar, forcing a thief to make two time-consuming cuts with an angle grinder to defeat it. Bundled with a secondary cable for front-wheel security, it outclasses its competitors by providing a level of “double-deadbolt” protection rarely seen at this price point, making it a reliable, high-value choice for daily urban use.
While it's a high-value, budget-friendly powerhouse, it does require some occasional “elbow grease” to keep it in peak condition. The locking mechanism can become sticky or “gummed up” over time, especially when exposed to road grit. Routine maintenance with a Teflon-based dry lubricant is essential to keep the disc-style cylinder turning smoothly. The included frame mount remains a point of contention for our testers; while it serves its purpose, it lacks the intuitive, “snap-in” ease of premium Abus models and can feel cumbersome when used often. Despite these minor ergonomic flaws, the KryptoLok remains the best option in the sub-$60 category. It easily outshines lighter, cheaper alternatives like the Abus 1200 Web—which our angle-grinder test defeated in a mere three seconds.
With the thinnest shackle of the Kryptonite U-Locks, the Kryptolok Standard was the quickest and easiest to cut through, at 10 seconds with the angle grinder. Credit: Jon Oleson
The Kryptonite Keeper 785 wowed us throughout our testing with its ease of use and versatility. Though it's not the most difficult lock to defeat, it's quite secure and surprisingly lightweight, versatile, and well-designed. While U-locks have been the go-to choice for bike security because they're hard to breach, they're often a pain to use. “Comparatively, we found the Keeper was quick, easy, and fit almost everywhere. I love how easy this is to use,” according to lead tester Joshua Hutchens. The Kryptonite chain lock is made with 7mm manganese hardened steel links, and at 37" long, it's super convenient. This lock is also relatively lightweight and easily stows in a bag or can wrap around a seatpost in a pinch.
Of course, user-friendliness doesn't mean much if a lock isn't secure. Fortunately, the Keeper 785 is fairly tough to cut. It was impervious to our bolt cutters, cable cutters, and hacksaws. It took our angle grinder 14 seconds and showers of sparks to slice through the heavy chain. While this isn't the most secure lock in our test, it strikes an excellent balance of security, convenience, and value. The Keeper provides peace of mind and some protection from thieves without power tools. If you want something a bit lighter, check out the The Abus Ivera 7210; it bests this lock by a few ounces and offers similar security.
The Keeper 785 falls pretty quickly to the power of an angle grinder, but if the links weren't secured in a vice, this would be far more difficult. Credit: Matt Lighthart
The Hiplok Original Superbright is a seriously functional design, perfect for commuters who want a high-security chain without the awkwardness of a frame mount. In 2026, it remains a favorite for its Sold Secure Silver rating and its 8mm hardened steel links, which provide a formidable deterrent in medium-risk urban areas. The “Superbright” name refers to its ultra-reflective nylon sleeve, which significantly enhances your profile to motorists at night while shielding your bike's paint from scratches. Its most ingenious feature is the patented wearable design: a non-locking buckle and adjustable Velcro strap allow you to wear the 4.3 lb chain like a belt, distributing the weight comfortably across your hips rather than weighing down a backpack. With a proven track record of long-term durability and a locking mechanism that stays “buttery smooth” even after years of exposure to the elements, it's a solid choice for riders who value visibility and on-person convenience.
Those riding for fitness or recreation might want something more lightweight. It feels much heavier stowed in a backpack or messenger bag than when worn on your person. It's also one of the more expensive models in our lineup, yet it still outpaces other contenders in the wearable lock category. If this type of lock sounds like something you'd like, remember that wearing something around your waist while riding might feel constrictive to some or dangerous to others. If you are looking for portability with a bit more security, check out the Kryptonite Evolution 1012 Chain Lock, which is longer and a bit heavier. However, the burly Hiplok is our testers' favorite wearable for daily commutes, while there are some quirks with it's design, you get the hang of it after a few uses.
We will say this immediately: cable locks aren't secure, and you shouldn't count on one to protect your bike. But if you must use one, the DockLocks Anti-theft Weatherproof Cable is the best we have tested. This lock isn't especially secure; we cut through it in seconds with a hacksaw, bolt cutters, and side-cutting cable pliers. The angle grinder cut through it like butter. But what it lacks in security, it makes up for in lightness, convenience, ease of use, and versatility. Testers say, “It's easy to toss into your bag or wrap around your handlebars and hit the town.” This lock has nice dials that are durable and easy to read, it weighs less than a pound, is smooth to operate even when muddy or frozen, and comes in five-foot lengths up to 25 feet. Lead reviewer Luke Hollomon admits, “If you have to have a cable lock, I think this is the one to get.”
We assessed several top-selling cable locks for this review and found that all were equally insecure. But the DockLocks cable stood out for what we mentioned above. This lock was originally designed to secure paddleboards and k and also works well in wet conditions. Overall, we're impressed by everything about this little lock, except security. If you are looking for something almost as light and compact but with more security, consider the ABUS Chain Lock 1200 Web. But if you're buying a cable lock, you're not committed to security anyway, and at least the DockLocks is nice to use. Our tester concludes, “Once I got past the fact this is not a very secure lock, I embraced and light and easy it is to use.”
If you're seeking a bike lock suitable for use in high-risk areas, like a college campus, skip the ABUS Chain Lock 1200 Web. However, this simple chain lock may do the trick if you need a minimal, easy-to-carry and use deterrent. At less than half a pound, it's easy to transport, whether in your jersey pocket, a backpack, or wrapped around your seat post. Tester Rebecca Eckland says, “In terms of portability, this lock rocks! I wrapped it around my adult and children's bike seat posts. In both cases, I barely noticed it was there. Its simple combo-opening feature means you don't need to carry a key.”
Unfortunately, this lock won't stop a determined thief. Its use is limited to a minute or two out of eyesight in urban areas. But this ABUS Chain Lock might be all you need in low-security regions where there aren't tool-toting thieves around the corner. Rebecca says, “It was my favorite when I just needed something to keep my bike safe for a dash into the local coffeehouse.” If you're a cycle commuter and must leave your bike unattended for the entire day, we recommend looking at the Hiplok Original: Superbright. Otherwise, while the ABUS is not super burly, if you're looking for a lightweight lock that doesn't break the bank and is easy to carry around, it may be just right for you and your (hopefully inexpensive) bike.
The Kryptonite New York Fahgettaboudit Chain and Disc Lock is the nuclear option of bike security, trading all pretense of portability for a near-impenetrable mass of 14mm manganese steel. Tipping the scales at over 15 lbs, this isn't a lock you lug around on a casual ride; it's a stationary beast designed to stay anchored to a permanent rack or inside a high-risk garage. While its sheer bulk is a physical and psychological nightmare for thieves, the raw steel links can be a “paint-shredder” for your frame, making it a better fit for those who prioritize brute-force defense over a pristine finish. For securing multiple bikes or providing “set it and forget it” peace of mind in high-theft zones, this remains the definitive physical deterrent for long-term unattended storage.
This lock isn't for the faint of heart; it's as burly as bike locks get. I found myself consistently strategizing on how to carry it, then deciding not to." If this lock feels like overkill, the Kryptonite Evolution 1012 Chain Lock, it's significantly lighter, but still more than most riders would like to carry.
The chain on the Kryptonite New York Fahgettaboudit Disc and Chain lock is thick, and a bear to lug around. And although it takes longer than most to get through, at 33 seconds, an angle grinder will do the job. Credit: Jon Oleson
Product Comparison Table
The ability to lock both wheels and your frame to the bike rack is a convenience offered by the Krytonite Evolution Chain. Credit: Joshua Hutchens
Other Notable Bike Locks
-The Master Lock Python Cable Lock 8418D is an inexpensive, minimal security lock that's probably better suited for locking a cooler into the back of your truck, but if you live in a low-risk area, it's a compact and convenient solution.
-The Kryptonite KryptoFlex 815 Combo is a great lock for kids. It offers only limited security, but the handy combo and ease of carry make it well-suited for bikes with low value in low-risk situations.
-The Master Lock Cable 8122D is another coil-style cable lock that features an easy-to-use combination lock and a bike mount. This lock is more robust than most of the other cable locks, but we wouldn't recommend using it with a high-value bike.
How We Tested
Our bike security experts have tested more than 40 locks over the past eight years, and we've followed trends and innovations in the market. Between our knowledge and testing procedures, this review is comprehensive.
Nope, not happening with those bolt cutters. The Kryptonite Keeper 785 is very effective against amateur tools. Credit: Matt Lighthart
Each bike lock endures more than 11 individual tests to rate its performance. Security is the highest-weighted metric. We used five different tools common to bike thieves, and we did our best to break or cut through each lock by combining ingenuity, brute strength, and, when that failed, technology—a.k.a. a power tool.
A word about our testing approach: Bike thieves will likely not have a corded grinder and a vice. We conduct our tests in a controlled setting with a corded angle grinder and a bench vice to eliminate the great degree of variability in performance with battery-powered tools. The amperage and battery life difference between two cordless angle grinders can easily double the cut times. The times displayed in our review are meant to form objective comparisons between products and may not reflect the time needed to remove a lock from a bike in a real-world situation.
We used an angle grinder to cut through each model to determine how long it took and how many cuts were necessary to free the bike from the lock. We take bike security seriously, so we bought, used, and destroyed every lock in this review to leave no stone unturned.
We used two methods to breach the Hiplok Original. While we were able to get through the chain in 13 seconds, we had to make two cuts that took 26 seconds. By attacking the lock directly, we made a more difficult single cut that took 23 seconds. Credit: Jon Oleson
To see which bike lock came out on the top of the pack, we created a challenging series of tests to evaluate their performance side-by-side. Our testers used these locks to visit practically every conceivable place you may want to use a bike lock, such as offices, libraries, bike shops, college campuses, local coffeehouses, watering holes, and grocery stores — spending hundreds of hours transporting and securing them in various locations. See our full How We Test article for more information on our testing protocol.
Our bike lock testing uses four rating metrics:
Security (40% of overall score weighting)
Ease of Transportation (25% weighting)
Ease of Use (20% weighting)
Versatility (15% weighting)
Why Trust GearLab
We assembled a team of experts to pedal around with these bike locks and pick them apart. Our lead tester, Rebecca Eckland, is a former USAC Cat 3 Road bike racer, winner of the 600-mile California Triple Crown Stage race, and is a longtime cyclist doing everything from racing to commuting. She's passionate about her bikes and believes that having a bike stolen is the worst thing to happen to someone. She's worked in bike shops and has seen all kinds of locks firsthand. Based out of Reno, NV, Rebecca practically lives on her bike for training, commuting, and fun. Our team also includes Ross Robinson, a dedicated bike commuter who has been locking up with chains, folding models, cables (as a secondary lock), and U-locks for over 12 years. Ross is interested in testing gear to its limit and has spent over 200 hours researching bike locks (and bike thieves) with hands-on assessment and directly experimenting with ways to defeat them. Luke Hollomon is another member of our squad. He owns nine bikes and has never had one stolen, so he must be doing something right. He's a physiologist, physical therapist, and car-free bike commuter in Richmond, Virginia, who also races and bike packs throughout the Mid-Atlantic. Rylee Sweeney rounds out our testing team. Rylee comes to us with a background in bike touring across the United States, where bike security is nearly as essential as food and water. And finally, our latest tester Jon Oleson has been an avid biker his whole life, switching between a mountain bike, road bike, and battery-powered e-bike (for lazier days). Jon has had bikes stolen and knows the pang in the heart that seeps down into the belly when you realize your trusty iron steed has been bike-napped. Thus, he knows the importance of finding the most secure lock that will (hopefully) prevent that from happening to any of you.
The Barronium found in the shackle of the Litelok destroys these cutting discs before we can make a single cut. Credit: Matt Lighthart
After months of riding around, locking to every stationary anchor point we could find, it was time to put the locks to the real test. Credit: Matt Lighthart
We use a wide variety of tools, but ultimately, it's the grinder that gets through the toughest locks. Credit: Joshua Hutchens
Analysis and Test Results
To help you select the right bike lock for your needs, goals, and budget, we used four key performance metrics in our testing process that define a quality bike lock: security, ease of transportation, ease of use, and versatility. Security is the most important of these metrics. But will you use a lock that weighs a lot or is inconvenient to carry? That's where the rest of the criteria come into play. A product's rating in these individual test metrics makes up its overall performance score and ranking, which we use to compare the competition.
Worse Value
Better Value
What's the Best Value?
We hate to say it, but the price of a bike lock usually correlates directly with its security and the time a thief will take to cut through or, in the best-case scenario, question their attempt to steal your bike. As it turns out, bike thieves have something in common with the rest of us: none want to go to jail. Many bike thefts are crimes of opportunity, and most thieves are inspired to steal bikes that 1) are not locked correctly or 2) are worth the risk.
The LITELOK X3 demonstrates this. It's a very expensive bike lock but incredibly secure. If you're looking for the best protection, it will cost you. Fortunately, other good options are significantly less expensive. The Litelok X1 is almost as secure and costs over $100 less. The Kryptonite New York Standard offers very good security at a lower price, but can't resist an angle grinder wheel. For tighter budgets and those in less risky neighborhoods or with less glamorous or costly rides, the Kryptolok is even more budget-friendly, though it is another step down in bike security. Presenting similar security to the Kryptolok while being more convenient to use, the Abus Ivera 7210 and Kryptonite Keeper 785 are great all-rounders for those less risky scenarios. While we usually recommend exploring more inexpensive options in other gear categories, your lock is not where you should cut corners. Spending more on a quality lock now will prevent you from spending much more on a new bike later.
Some fought harder than others, but ultimately, all succumbed to the angle grinder. Credit: Matt Lighthart
Security
For most cyclists, security is the most critical consideration when choosing a lock. This makes sense; why would you buy a bike lock if you weren't concerned about your bike's security? Therefore, we invested a lot of time in testing each contender's security. Results from this test metric make up 40% of a product's overall score.
The Kryptonite New York Standard U-lock is a step up from the bargain locks, and thanks to the engineering of Kryptonite locks would take over 40 seconds to make the two cuts required to remove the lock. Credit: Jon Oleson
Interestingly, different lock manufacturers don't share the same security rating standards, and neither do independent security testing organizations, like Sold Secure, which are popular references here in the United States. The fact that these security standards aren't standardized can make it difficult to weed out precisely what a particular rating means. Sold Secure is an independent, not-for-profit trade association that employs a small army of professional locksmiths to assess the security of various locking devices and mechanisms. Products are then rated based on their performance during the lock-cracking tests. Other organizations, such as VdS, a German independent testing institution for security and fire protection, and the Foundation ART, a group of Dutch organizations teaming together to prevent theft of two-wheeled vehicles, submit products to rigorous professional-grade tests and rate them according to performance. These organizations have no ties to manufacturers and are well-respected for holding a high testing standard on many products, including bike locks.
Our testing process began with assessing each lock's weak point and attacking it. Then, we tried alternative attacks on a lock's integrity to ensure we were not missing any vital weaknesses. We used common tools employed by bike thieves to compromise each lock and make away with the bicycle. We started with hand tools, including tin snips, a hammer, a hacksaw, and bolt cutters. We then switched to an angle grinder, a cordless drill, and even a car jack (because thieves also use those).
Bike Lock Security
Defeated by Tin Snips
Defeated by Hammer
Defeated by Hacksaw
Defeated by 36" Bolt Cutters
# of Angle Grinder Cuts to Defeat Lock
Abus Ivera 7210
No
No
No
No
2 cuts
Kryptonite KryptoLok Standard
No
No
No
No
2 cuts
LITELOK X3
No
No
No
No
2 cuts
Kryptonite New York Lock Standard U-Lock
No
No
No
No
2 cuts
Hiplok Original: Superbright
No
No
No
No
1 cut
Hiplok D1000 Bike Lock
No
No
No
no
2 cuts
ABUS Granit X-Plus 540 U-Lock
No
No
No
No
2 cuts
Kryptonite New York Fahgettaboudit U-Lock Mini
No
No
No
No
2 cuts
OnGuard Brute STD
No
No
No
No
2 cuts
ABUS uGrip Bordo 5700
No
No
Yes, eventually
Yes, 2 seconds
1 cut
Seatylock Foldylock Compact
No
No
No
No
1 cut
Kryptonite Evolution Mini-7 U-Lock
Cable: yes; U-lock: no
No
No
Cable: yes, U-lock: no
2 cuts
Hiplok DX Wearable U-Lock
No
No
Yes, eventually
No
2 cuts
OTTO DesignWorks Ottolock Cinch
Yes
Yes
No
Yes
1 cut
OnGuard Bulldog DT
No
No
Yes, eventually
No
1 cut
ABUS Chain Lock 1200 Web
Yes, requires two cuts to defeat
No
No
Yes, but not very easily. Requires two cuts
2 cuts
Kryptonite New York Fahgettaboudit Chain and Disc Lock
No
No
No
No
2 cuts
Kryptonite KryptoLok 990 Combo
No
No
No
No
2 cuts
DockLocks Anti-Theft Weatherproof Cable
Yes
No
Yes, easily
Yes, easily
1 cut
Kryptonite KryptoFlex 815 Combo
Yes
No
Yes, easily
Yes, easily
1 cut
Hiplok Z Lok
Yes
Yes
Yes, easily
Yes
1 cut
Master Lock Cable 8122D
Yes
No
No
Yes, with effort
1 cut
Master Lock Python Cable Lock 8418D
Yes
No
Yes, easily
Yes, easily
1 cut
With the right tools and enough time, all locks can be defeated, and it doesn't take a genius or a big, brawny human to do it. A high score for security represents only a higher level of theft deterrence. In the words of a skeptical cyclist: “If you think this lock is so great, why don't you take your race bike down to the college campus, lock it up, leave it overnight, and see if it's there in the morning?” Even the highest security locks can be broken within minutes, not hours. The hope is that those extra minutes are long enough that someone nearby will notice the sparks flying and the evil smell of burning metal and will stop the theft from happening. In a world where car alarms don't cause much panic, let's be realistic about what you can expect from a bike lock. The chart below represents the total time it takes to completely remove the lock from a bi, cycle whether that takes one or two cuts.
The least secure models (roughly half of our test lineup) took between one and 20 seconds to cut through with an angle grinder. Many of these couso be defeated with other methods like tin snips, hacksaws, or bolt cutters. Another group took between 26 seconds and a minute to cut through. The Litelok X3, X1, and Hiplok D100 were the most impressive locks, taking several minutes and multiple cutting wheels.
The Kryptonite New York Fahgettaboudit shackles lock into place in the crossbar, meaning that unless two cuts are made then the lock still deters theft. Credit: Jon Oleson
Considering the amount of time it took to grind through each lock with our angle grinder and how easily these locks could be defeated using other tools (hacksaw, hammer, and bolt cutters), we've come up with a security score for each lock.
Among the competition, the LITELOK X3 scores the highest, setting a new standard in difficulty to cut. At the same price point, and not far behind in terms of deterrence, is the Hiplok D1000. Scoring between the two and coming in at a lower price point is the Litelok X1.
You can see here how the cutting wheel gets smaller and smaller, being destroyed by Litelok's Baronium-enforced steel. Credit: Matt Lighthart
Other top contenders include the Kryptonite New York Fahgettaboudit U-Lock Mini, one of the hardest locks to crack. It is followed by the Kryptonite New York Standard U-Lock, Kryptonite New York Fahgettaboudit Chain and Disc Lock, and the OnGuard Brute STD. These models have patented composite or hardened steel bars ranging from 14 mm to 26 mm in diameter that resist attacks from all our hand-powered tools, including a 36" bolt cutter.
The Kryptonite New York Fahgettaboudit U-lock is the thickest that we tested from this brand, and also proved to take the longest to defeat with the angle grinder. It takes nearly a minute to make the two cuts required. Credit: Jon Oleson
Regarding the angle grinder, each of these locks took the longest to slice through completely (around a minute of hardcore, sparks-flying slicing), while the Hiplok rebuffed our grinder for over 5 minutes. Moreover, for all of these locks, one cut wasn't enough. Because of their well-designed dual-locking mechanisms, they required two different cuts on the U-bar of each lock to free the bike, doubling the getaway time. It would take a thief at least one and a half minutes of sparks a-flying to compromise one of these locks. The ABUS Granit X-Plus 540 U-Lock also required two cuts from the angle grinder before releasing the bike frame, as did the Kryptonite Evolution Mini-7 U-Lock, Hiplok DX Wearable U-lock, and Kryptonite Kryptolok.
The ruins of our testing are shown here. We used all the modern tools thieves use to rate the security of the most compelling locks on the market. Credit: Matt Lighthart
The budget-friendly Kryptonite Evolution Mini also performed exceptionally well in this area. Most products at this price point compromise security by not using durable materials in the lock's shackles. The Evolution Mini is more robust than the Abus Ultra 410 + Cobra Cable. We also like that it required two cuts at any point on the lock to defeat it.
The OnGuard Brute has much more play in the shackle after one cut with the angle grinder, and may not require a second cut to make off with your would-be secured property. Credit: Jon Oleson
The other U-locks we reviewed also withstood all hand tool attacks but only required a single cut from the electric angle grinder to become compromised, so they earned lower security scores. Each of these locks took approximately 25-40 seconds to cut. No amount of hammer slamming, hacksawing, or bolt cutting could beat them. The same goes for the Hiplok Original: Superbright chain and locking mechanism. Of course, the cables accompanying some of the U-locks, like the Abus 410, were defeated by most hand tools in our arsenal. As a rule of thumb, cable locks should never be used on their own to secure a frame, but when paired with another lock (like a U-Lock), they improve a lock's versatility by securing more components.
While the U Lock puts up more resistance, an angle grinder slices right through the cable that's attached to the Kryptonite Evolution. Credit: Jon Oleson
A cable lock alone is nearly worthless, but when used with another lock, it increases your bike security's effectiveness. Fewer thieves are willing to risk getting caught to steal only a bike saddle or a mediocre wheel—a cable lock inconveniences thieves looking for quick saddles, panniers, or free wheels to snatch. Consider adding an extension cable to any lock you choose. A four-foot cable is an appropriate length for most bikes.
Getting a secure bike lock is part of the safety equation, but always make sure that you're locking your bike to an anchor that is actually secure. We've seen bike racks like this, some that pull out of the ground and parking meters that can be twisted off of their mounting poles. Credit: Joshua Hutchens
In this cycle, we added cable locks to our review because they remain incredibly popular despite providing minimal security. No one should use a cable as a primary locking method. We could pop through every cable we tested in just a few seconds with 24" bolt cutters. Still, we know people will buy and use them even though they definitely shouldn't, so we compared them across the same categories as all other locks. No cable stood out for security; they were all equally easy to slice. Some were even easily hackable by checking if the lock loosened up as we tested combinations. The DockLocks Anti-Theft Weatherproof Cable was just as cuttable as all other cables, but we couldn't guess the combination by wiggling it, which was nice, at least.
The hardened steel links are significantly hard to get through. Credit: Matt Lighthart
Less than a second to breach with an inexpensive, easy-to-carry tool. Credit: Matt Lighthart
The folding-style locks are much better than cables, but were still a significant step down in security compared to the chain and U-locks. The ABUS uGrip Bordo 5700 was comparable to the FoldyLock Compact, which had a superior locking mechanism and joints, but was defeated much quicker by the angle grinder. The weak points of folding locks are the rotating rivets. The bolt cutters couldn't bite through the metal plates, but it took only 10-15 seconds to bust the ABUS model by working the blades around the rivets. Surprisingly, the FoldyLock resisted this attack.
Although the Abus uGrip Bordo 5700 resisted attack by bolt cutters, the angle grinder cut through in 5 seconds flat. Credit: Jon Oleson
Conversely, we were disappointed by the security offered by the OTTO Design Works Ottolock Cinch. After reading all the hype about this lightweight lock, we were excited when the Ottolock survived a few common tools (wire snips and hacksaw) during our first trial of destruction. However, upon further inspection, the Ottolock doesn't provide much protection at all — it cuts in less than a few seconds with a pair of very inexpensive and inconspicuous tin snips. Despite the hype, this lock doesn't protect you from a thief with a very basic set of tools.
We were at first surprised that the Ottolock Cinch's metal band resisted bolt cutter attack, but ultimately it was defeated by a cheap pair of tin snips. Credit: Jon Oleson
As expected, one of the weakest performers is the locking zip-tie Hiplok Z Lok. Almost any tool, including a hammer, can defeat this lock, making it a poor choice in urban and most suburban settings. This lock is best reserved for short periods when the bike is unsupervised in low-crime areas. We certainly don't recommend it when leaving your bike out of sight.
The Hiplok Z Lok is made for quick pit stops, and is basically a glorified zip tie that keeps honest folks honest. In other words, it's does nothing to resist a pair of cutters. Credit: Jon Oleson
It's important to remember that security comes at the cost of other attributes, including ease of use and weight. The more secure a lock, the heavier it is likely to be. The Hiplok D1000 was an exception to this, keeping its weight around 5 lbs. Not light, but not so heavy as to make us hate carrying it everywhere. The larger Kryptonite New York Fahgettaboudit Chain and Disc Lock offers great security and ease of use with its length, yet it weighs 15 lbs. There's no way any commuter will want to carry that around (unless you have an electric bike. Typically, cyclists who use this lock leave it where they will park and secure their bike, like in their shed or on the rack at the office. It's also worth a little cost-benefit analysis, as some of the most secure locks likely cost more than the single-speed beater you may be rolling around town on.
The Kryptonite New York Fahgettaboudit Disc and Chain lock is beefy to lug and at least intimidating to prospective thieves. Although it takes some time (over 30 seconds to make 2 cuts), the angle grinder will get through it. Credit: Jon Oleson
Ease of Transport
What is the likelihood that you will carry around a bulky, heavy lock, particularly if your bike is your daily commuting vehicle? We tested portability by riding around with them (mounted to the bike frame if a mount is provided), carrying them in a jersey pocket, or shoving them in a bag (backpack, pannier, camera bag, hip pack, the lot). These tests determined whether carrying the lock was a habit we could realistically keep. Of coumany bike upgrades and accessories createreate more carrying options, like your favorite messenger bag, installing a basket, or buying a pannier, that makes it easier to ride with a bulky or heavy load. Although those options were in our minds, we focused on the product's existing features and any included hardware.
Folding locks are some of the easiest models to transport. The ABUS uGrip Bordo and FoldyLock Compact fold into a compact shape that fits easily into a backpack or messenger bag without taking up much space and could even fit inside generously sized pant pockets. They also come with easy-to-use frame mounts that can be strapped onto the bike and were among our favorite mount designs. Both fit onto nearly any tubular bike frame and are easy to slide into and remove from the mount, yet remain in place without rattling or ever coming close to falling out. It's also worth mentioning that both weigh considerably less than all the chains and U-locks that we analyzed.
The Seatylock Foldylock includes a clever mount that secures it to your water bottle cage. Credit: Joshua Hutchens
This compact lock doesn't take up all of the space in your frame. Credit: Joshua Hutchens
Likewise, we were impressed by the 0.46-pound ABUS 1200 Chain, which easily wraps around the seat post of basically any bike. Thanks to its nylon sheath, that chain wouldn't scratch the paint job on our sweet ride.
The wearable design of the Hiplok Original is a grinnovationions that makes transporting a lock relatively easy. This model allows you to attach the chain around your waist like a belt, something other locks of a similar weight (read: U-Locks) don't do. Weight worn on your body is less noticeable while riding than weight worn in a bag, pack, or even on the bike frame. Initially, we didn't expect this design to be comfortable around our midsection, but we were wrong. It's surprisingly comfortable for both our male and female testers.
The Evolution Mini is small enough to put in your pocket, but it's rather heavy, so tighten your belt. Credit: Joshua Hutchens
The Superbright version of the Hiplok (the version we tested) has a large reflective stripe on the exterior of the nylon sheath. This stripe is positioned on the rider's lower back when worn correctly. The LiteLok is also reflective. We appreciate this attention to riding safety, which adds another way to be visible on the streets in low light. No other models we've reviewed have reflective material that helps promote the rider's visibility.
The Kryptonite Evolution Mini uses a secure frame mount, making it a breeze to carry. Credit: Joshua Hutchens
Next up are the U-locks. These heavy hitters are secure and rigid, which is great when discussing security but not so much when riding a bike with them. Unlike other locks, U-locks are far more cumbersome, regardless of whether you bring them in a bag or on your bike frame. Each U-lock tested, except for the Kryptonite Fahgettaboudit Mini, the LITLOK X3, and the Hiplok D1000, comes with a frame mount, though some are better than others. The most secure U-lock mount comes with the ABUS Granit X-Plus. However, due to its size, it's most likely too bulky to fit into the main triangle of small bike frames, such as kids' bikes or bikes for someone 5'2" and shorter. We like the Transit FlexFrame that ships with the New York Standard U-Lock and Kryptonite Evolution Mini, although these can also be difficult on small frames. The compact Hiplok DX Wearable U-Lock has a plastic clip attached to it, allowing you to clip it to your belt or back pocket, but be prepared to tighten your belt because it weighs 2.4 lbs and will pull your pants down. While convenient for short commutes, its small size is limiting.
The Abus Granit has a very easy-to-use bracket that secures the lock in place and can be operated with one hand. Credit: Joshua Hutchens
It's worth mentioning that the most comfortable product to carry in this review is the Hiplok Z Lok, which, at 1.3 ounces, weighs next to nothing. We hardly noticed this zip-tie model, whether attached to the bike's frame, under the saddle, or on our wrist — making a cycling-fashion forward statement our testers didn't mind so much (it was so light, we barely noticed we were wearing it). While it's not much of a deterrent for even a clumsy thief — and scored extremely low in the security metric — this inexpensive lock may be enough to prevent the theft of a saddle or pannier.
This is a secure mount for the 410 but it requires you to insert the shackle and lock the U-lock in place, essentially locking it to the mount. Credit: Joshua Hutchens
Kryptonite's Fahgettaboudit Mini lost points here because, although compact, it weighs more than all U-locks tested and doesn't come with a mounting bracket. Despite its small size, it tended to beat up the loose papers and other contents in our backpacks. The LITELOK X3 and Hiplok D1000 presented similar problems, lowering their score. And while the Abus Ivera 7210 is pretty light and coils up small, we couldn't come up with a way we like carrying it other than in a bag; it's just unwieldy. Lastly, the Fahgettaboudit Chain and Disc Lock weighs over 15 pounds and is the ultimate heavyweight bike lock. Large, burly, and no-nonsense, this lock isn't something you will probably ever want to carry around. This land-bound bike anchor is meant to stay put on a bike rack, which means this lock scored terribly in the transportation category to offset its high score in security.
The Seatylock uses your water bottle cage mounting bolts and keeps the space requirements to a minimum. Credit: Joshua Hutchens
Ease of Use
While a bike lock is straightforward, you may be surprised that some of today's models can have a bit of a learning curve. It can take practice getting used to the mechanics of removing the bike's front wheel and threading a lock through two sets of spokes and a bike rack to get comfortable and efficient. We tested each contender's added difficulty imposed on this process for this test metric, whether due to its size, shape, weight, or design. Specifically, we asked some critical questions: how quick was it to secure and remove each lock, and which design features made that process more natural or difficult? Results from this test metric make up 20% of a product's overall score.
Most products we tested ran smoothly through the gauntlet of opening and closing countless times. We experienced no jams or stuck keys throughout our three months of testing. Still, some were easier to use than others. Most cable locks are straightforward to weave through wheels and frames at bike racks, and their flexibility is convenient when faced with awkward structures, such as trees or lamp posts. The exception here is the Masterlock 8112D. It has too much “memory” and quickly recoils on itself if you lose tension on it. This resulted in a couple of bruised shins in our testing.
The Kryptonite New York Fahgettaboudit Chain, on the other hand, is hard to control its links when wrapping up our bikes to immovable structures. We constantly feared chipping the paint on our bikes as the huge links clunked around. If you're picky about the appearance of your bike, be wary of this chain model. Similarly, the folding locks tended to spring open when turning the key, sometimes sending the exposed steel plates flying into our frames. The nylon sheath on the ABUS Ivera 7210 assured us it wouldn't nick or damage our paint jobs, and prized brewery stickers and its length made it easy to wrap around the most awkward of obstacles. We even locked two bikes with it a couple of times to lighten our load on the way to the coffee shop.
A bit more volume lets you grab larger tubes or lock at an awkward angle. Credit: Joshua Hutchens
The U-locks tend to be less accommodating when locking a bike to anything but a bike rack, especially if you have wider wheels on a mountain bike or fat bike. These locks best serve cyclists when a bike-specific rack is at their destination. A U-lock for the frame and another lock (cable or otherwise) for the wheels would work nicely, but this arrangement also increases the time spent locking up. However, U-locks are simple enough to use for standard bike racks. The New York Standard U-Lock is easy to manage due to its reasonable size, while the Kryptolok is larger, making it more convenient. On the other side, the incredible security of the Hiplok D1000 is partially offset by how annoying it was to lock at times; it's just a touch too small. The LITELOK X3 offers a similar level of security to the D1000 and has a larger shackle, causing it to beat out the close contender in this category.
A size comparison of the Hiplok D1000, the Kryptonite New York Standard U-Lock, and the Kryptonite KryptoLok. Credit: Luke Hollomon
Before selecting a lock, consider where you'll park your bike and if a secure bike rack or other attachment points are nearby. If no bike racks are available, a U-lock likely won't work.
Even though bike locks aren't known for their fancy features, some extra touches make them easier to use. Four Kryptonite locks, as well as the ABUS Granit X-Plus, the OnGuard Brute STD, and OnGuard Bulldog come with a small light (either LED or HID) on one of the included keys, which is convenient when fiddling with your lock in the dark. We also appreciated the dust covers featured on every U-lock, plus the disc lock of the Fahgettaboudit Chain. The best one, though, belongs to the Granit X-Plus, an automatic cover pushed out of the way by the key as you insert it. Keeping precipitation and sediment out of the locking mechanism reduces friction within the locking mechanism and prolongs its lifespan. We also appreciate that ABUS doesn't leave that protection up to our forgetfulness.
The ABUS Bordo 5700 features Velcro straps for fast mounting to your bike frame. Once you have dialed in the best fit for your frame, the straps are trimmable. Credit: Jenna Ammerman
We installed each frame mount onto multiple bikes and found they are not created equalls of user-friendliness. While the ABUS U-lock mount was annoying to install, the mount for the folding ABUS lock was much easier to put on and adjust. It either attaches to the screw holes of a water bottle cage or anywhere else on the frame using two heavy-duty hook and loop straps, which take seconds to install. The frame mount for the OnGuard Bulldog U-lock is easy to install, whereas the mount for the Kryptonite U-locks received mixed reviews. The bike mount for the FoldyLock Compact also has a neat feature where it attaches to the water bottle holder, but you don't have to remove your bottle cage to snap it into place.
If you're committed to mounting your U-lock onto your bike frame, you could also consider purchasing an aftermarket mount.
It's bulky, but carrying the lock here makes it extremely easy to access. Credit: Joshua Hutchens
The size of your bike will impact the ease of installing a frame mount. At the same time, you could probably attach a whole handful of lock mounts to a 60cm+ bicycle frame, if you're petite and riding a 48cm (think: 5'2" and under riders), then mounting a lock to the bike might mean you lose your capacity to carry a water bottle or (sometimes) that the mount won't work at all. This isn't a huge deal if your commute is short, and you don't mind carrying your water in your backpack, but not having water within easy reach on longer rides can result in dehydration and could be a deal-breaker for some.
Even the beefy New York lock remained secure in the Kryptonite frame mount. Credit: Joshua Hutchens
Versatility
A bike won't be rideable without its front wheel unless you have serious wheelie or unicycle skills. We encourage you to stay on two wheels and consider getting a lock that secuthethat front wheel. While more bikes nowadays offer disc brakes, making front wheels a little more difficult to remove (but not much), securing that front wheel creates an extra deterrent for thieves looking to make a quick grab. Other components thieves like to snatch: saddles, bike lights, and rear wheels. If bikes are left out long enough, the entire thing might get stripped down to the bare locked frame. Results from this test metric make up 15% of a product's overall score.
The most versatile models we tested are the U-locks that also come with cables (although there is always the option to buy two U-locks, of course). The OnGuard Bulldog DT, Kryptonite KryptoLok, and the Evolution Mini-7 come with a four-foot-long rubberized cable to secure both wheels and the seat (through the seat stays). Some of us found this cable a relief because it meant we didn't have to take the front wheel off, making it much easier to use. The Abus Ivera 7210 was also quite versatile since its length means the frame and both wheels of a smaller bike can be locked all in one go in some situations.
Do you take security seriously? Credit: Joshua Hutchens
Cable-only models can also cover your whole bike (except the ends are often too large to secure seats). This is especially true for the DockLocks Anti-Theft Weatherproof Cable that comes in lengths up to 25 feet. Don't leave your entire bike security up to a single cable. It's not secure at all. The immense chain of the Fahgettaboudit Chain and Disc Lock is long enough to secure both wheels and the frame to a solid structure, but don't expect to feed the hefty chain links through your saddle stays.
The Hiplok can reach non-standard locking places, giving you a bit more versatility and choice of spots when locking. Credit: Joshua Hutchens
Even though it's not always easy or convenient, removing the front wheel and positioning it to lock up with the rear wheel and frame is a good practice. The U-locks and folding locks can lock up a wheel and the frame, but they might not handle two wheels in the method described, depending on your tire size. The larger U-locks are the OnGuard Brute STD, Kryptonite KryptoLok, and the ABUS Granit X-Plus, which accommodate more bike parts inside the U. The steel chains have an advantage here, especially when locking up to irregular or awkward structures. The Hiplok Original: Superbright is flexible and provides a larger internal area for fitting even fat tires, the frame, and the structure you use as an anchor in ways a U-lock cannot compete.
Sometimes there isn't a bike rack, and locks like Kryptonite's Keeper 785 let you “stretch” around something like this lamppost. Credit: Joshua Hutchens
Other Uses for Your Lock:
We found many other uses for these products throughout our testing, especially the bigger U-locks and chain models. We locked the back tire of a dirt bike to its brake rotor, a trailer tire to its frame so it couldn't move, and some random items in our gear garage when traveling. Keep your mind open to other uses for your lock. The bigger the lock, the more options for locking things.
Sometimes an aftermarket mount is the best option. Here, an inexpensive velcro U-lock holder does a great job of securing the X1. Credit: Joshua Hutchens
How to Pick the Best Bike Lock for You
Given the large number of options available on the market today, choosing a bike lock can be challenging. We've compiled a few key considerations and questions to help you narrow down the options and find the right level of security for you.
What Style Lock is Best?
There is quite a range of designs, shapes, and materials for bike locks, and each has pros and cons. U-style locks typically offer the best security and deter thieves more than other locks, thanks to the shape and the connection points. However, these can also be a bit cumbersome and heavier to ce go. Depending on the thickness and construction quality, Chain-style locks can be a solid option to consider, and they work well for those who need to lock up multiple bikes or need more flexibility in what they can lock to. Folding locks have a unique design that makes them useful for funky shapes and angles. They are easy to transport, but their security level is not always as reliable as other styles. Lasnd probably least), cable locks are affordable, convenient, and will work in a pinch. However, they are the least secure of the locking methods we have tested due to their easy-to-cut nature. Now that you know the basic differences between lock styles, choosing the right one means looking at your budget, desired level of protection, and frequency of use.
The Seatlock offers versatile locking flexibility for non-standard shapes. Credit: Joshua Hutchens
What Level of Security Do You Need?
If you own a bike, it's good practice to keep a bike lock handy. But depending on where you live, the type of bike you ride, and how long you plan to leave it unattended, you will likely be drawn toward one lock type over another. If you're riding an older bike through a small town to grab coffee, your security needs will differ from a big city commuter or university student sporting a shiny new bike. You will need to evaluate the safety of your typical surroundings and the value of your bike before deciding on what level of security you need out of your lock.
What Locks Are Best for Transportation?
Bike locks can be transported either by carrying in a pack, on your bike, or even on your body. If you have a daily commute and don't mind stashing your lock in your bag, then a larger-sized lock shouldn't be an issue. If you are planning on biking long distances and only need a lock for quick pit stops, a smaller, more portable lock you can ride with on your bike, such as a folding lock, would be ideal. The most important considerations will be the weight and functionality while either strapped to your frame or on your body.
How Important is the Material?
Certain material choices and construction designs can improve the chances of keeping your bike secured. Higher-quality locks will use thicker materials to deter thieves from using hand tools such as bolt cutters. Additionally, reputable brands will create designs that help prevent thieves from using leverage to pop off locks. Paying attention to material selection and design features can mean the difference between a thief successfully breaking your lock or moving on to easier targets.
The New York series of locks is amongst the most forbidable looking but they lack the newest technology that keeps your bike safe from thieves with power tools. Credit: Joshua Hutchens
Conclusion
A bike lock is critical for almost every cyclist, especially those who use their bikes as their primary or only method of transportation. Losing your bike to a faulty or insufficient bike lock is beyond a bummer, so please find the perfect lock that suits your needs and is easy to use. Before purchasing, consider the level of security you need and the inconvenience you are willing to tolerate. Whether you need robust security, convenience for quick stops, or a lightweight lock that's easy to transport, this review will help you make the best decision for you and your bike.
