Electrek review: The Jetson Bolt electric bicycle is a $399 steal of a deal. Bolt pro bike

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Electrek review: The Jetson Bolt electric bicycle is a 399 steal of a deal

One of the things I love about electric bicycles is the extreme variety of options in the market. From electric cargo bikes to mini e-bikes to 10,000 street e-bikes, there’s a bit of everything on the spectrum.

And like any spectrum, you often find the really interesting stuff on the extreme ends. Cue the Jetson Bolt, an ultra-affordable 399 electric bicycle. This little thing is a surprisingly capable bike, as I found out by riding it around for a few weeks. Read on to see my full review.

First of all, let’s address the elephant in the room. The Jetson Bolt has no pedals, so I’m not sure if this is technically a “bicycle”.

I’d consider it more like scooter functionality in a small bicycle form. But that’s a lot of words, so I’ll keep calling it a bike.

Jetson Bolt electric bicycle tech specs

The Jetson Bolt e-bike is definitely small, tipping the scales at just 34 lbs (15.4 kg). It has a weight capacity of 250 lbs (113 kg), meaning even though it’s small, it can still handle larger riders.

Video review

The rear 250 W motor doesn’t sound like much, but it has surprisingly good torque. The little motor gets me up to the bike’s top speed of 15 mph (25 km/h) quite quickly. Keep in mind that there are no pedals, so that acceleration is entirely unassisted.

The range is rated at 17 miles (30 km), but I got around 2/3 of that before performance started to become sluggish. I’m not sure where they got 17 miles from, unless those are downhill miles. Still, 12 miles or so isn’t bad for this tiny e-bike. Considering it is meant for city riding, I can’t imagine riding much farther than that.

With a 36V and 5.2 Ah (187 Wh) battery, the Jetson Bolt isn’t meant to be a long haul e-bike.

Braking is accomplished via a single mechanical disc brake in the rear. It’s great for hardcore power slides (ask me how I know).

A twist throttle, battery meter, cruise control button, on/off switch and horn button adorn the handlebars.

Front and rear LED lights are built into the frame and are powered by the main battery pack.

The Jetson Bolt folds down to 20″ x 40″ x 28″ (51 cm x 102 cm x 71 cm). It folds at the handlebars, not in the middle, but it still becomes fairly small. Definitely small enough to fit in any trunk.

Jetson Bolt ride quality

This little e-bike is actually pretty fun to ride. The first day or two I kept blindly feeling for pedals with my feet when I would takeoff. But I soon got used to the whole “no pedals” thing, and it eventually felt normal.

With a decently torquey motor and small 12″ diameter wheels, the Jetson Bolt gets up to speed quickly and I never felt like I needed to assist it.

The only time I missed having pedals was on hills, where it would slow down a bit.

I didn’t do a full range test because the lack of pedals meant I would have had to walk it back when it finally ran out. That’s probably the main downside to not having pedals.

But there are upsides too. The whole bike is super lightweight without a bunch of heavy bike components like pedals, cranks, chain, chain ring, cassette, derailleur, etc. Plus, you don’t have to worry about maintaining or adjusting those parts, and there are fewer things to break.

And with fewer bike parts, the price of the Jetson Bolt can come down without sacrificing the quality of the electrical components.

I would have loved to have some suspension to smooth the ride a bit, but of course you couldn’t hit this weight or price point with suspension. And with the relatively wide tires and plush seat, the ride isn’t as harsh as you might expect. You could always add a suspension seat post if you really wanted some extra comfort.

My Takeaway

For the price (399), the Jetson Bolt e-bike is an awesome ride. It can do everything an electric scooter can do, but lets you sit down like on a bicycle.

It’s not an amazing e-bike by any stretch of the imagination. I’ve ridden e-bikes that go faster and farther and with more features. But I’ve never ridden one as affordable. And considering that this bike is decent quality, it offers quite good bang for your buck.

Until now the best mini e-bike I’ve ridden has been the 489 Swagtron EB-5. But if you can do without pedals and want to save nearly 100, the Jetson Bolt gives the EB-5 a real run for its money.

I think the Jetson Bolt e-bike would be best for city riders or students on a college campus. It’s small, easy to stow or carry up stairs (especially with the built-in carry handle) and is just an all around fun little e-bike.

As a last-mile vehicle, it’s perfect. If you need a way to get from your home or work to the train or bus, this could be it. It folds, allowing it to board many forms of public transportation, and could turn a half hour walk into an 8 minute joy ride.

If you’ve been considering an electric bicycle for commuting but haven’t wanted to invest much money, this could be your answer.

What do you think of the Jetson Bolt? Could you see yourself scooting around on this little e-bike? Let us know in the Комментарии и мнения владельцев below.

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Jetson Bolt Pro Review: The Perfect Bike for Urban Riders? (2023)

Can the Jetson Bolt Pro convince commuters to make the switch to e-bikes? This compact e-bike gets you to work or school sweat-free and is small enough to carry into the office. The 350-watt motor and innovative folding design could be the solution urban riders seek, and the competitive price is perfect for tight budgets.

The Bolt Pro’s affordable price tag is unbeatable, but is the deal too good to be true? In this article, I summarize the Bolt Pro’s specifications, give specific ratings, and discuss possible alternative e-bikes. Keep reading to know my thoughts on the Jetson Bolt Pro and its performance on the city streets.

  • What Type of Bike is the Jetson Bolt Pro?
  • Jetson Bolt Pro Specs at a Glance
  • Is Jetson a Good Brand?
  • Performance Rating 6/10
  • Foldability Rating 8/10
  • Key Features
  • Frame 3/5
  • Motor 4/5
  • Battery and Range 3/5
  • Brakes 5/5
  • Jetson Bolt Pro Full Specs
  • Overall Impression 7/10
  • Pros
  • Cons
  • How the Jetson Bolt Pro Stacks Up
  • Similar Models to the Jetson Bolt Pro
  • Aventon Sinch Foldable Ebike
  • RadExpand 5 Electric Folding Bike
  • Frequently Asked Questions

What Type of Bike is the Jetson Bolt Pro?

The Jetson Bolt Pro is a compact e-bike designed for city use. While it’s technically a folding e-bike, only the steer tube folds down rather than the traditional double-fold system where the frame folds in half. A 350-watt rear hub motor tops out at 15.5 mph with throttle or pedal assist modes.

The Pro model is an upgraded Jetson Bolt electric bike with a 250-watt motor and the same top speed. The standard Bolt doesn’t have pedals and only runs via the twist throttle for pedal-free cruising. The Jetson Bolt Pro has a retail cost of 599.99 but is currently on sale for 499.99 on Jetson’s website. This falls well under a grand; riders can see our list of the best e-bikes under 1,000.

Check out this hands-on review video to see the Jetson Bolt Pro in action.

Is Jetson a Good Brand?

Jetson is a lesser-known brand in the e-bike industry, but what they lack in name recognition, they make up for in their variety of electric mobility products. The brand also specializes in electric scooters, hoverboards, and products for kids. Jetson offers the Bolt and Bolt Pro foldable e-bikes and full-sized electric bikes designed for urban use.

The emobility brand made a splash because their Jetson electric bikes ended up in Costco, the huge wholesale retailer with stores all across the US. This introduced the Bolt Pro folding electric bike to millions of shoppers where they could check out the bike in person and purchase it at a discount— the Costco in-store price for the bike was around 349-375 instead of the 599 retail price on the Jetson website.

Jetson is currently offering the Bolt Pro for 499 online, so customers can snag a deal while the sale lasts. Recent articles and user reviews have reported that Costco is now Jetson Haze Electric Bike model instead of the Bolt Pro. Compared to the cheaper Bolt Pro, the Haze is a fully-foldable Jetson bike with larger 16” wheels and a removable battery but it currently costs 549.99. Considering how much electric bikes cost, both models are a convincing deal.

Performance Rating 6/10

The Jetson Bolt Pro folding electric bike is designed for cruising through the city streets, and it does a decent job for such an affordable and compact e-bike. I don’t expect tons of power or breakneck pace, but the 350-watt motor provides sufficient speed on commutes and quick errands. The standard Bolt has a 250-watt rear hub motor, and Jetson did well to upgrade the motor on the Pro version.

The listed top speed is 15.5 mph, which is usually achievable. However, the suggested 30-mile range is overestimated, so riders can expect less distance on a single charge. If you only go on short trips or can easily recharge at your office, that range should be fine for most days.

If you’re looking for an electric tricycle, check out our list of the best three-wheeled e-bikes.

Foldability Rating 8/10

This section could also be called the Ease-of-Use rating since it also includes how easy the Bolt Pro is to assemble, carry by hand, and transport. Almost all user reviews report that the Bolt Pro is a piece of cake to assemble and only requires two tools included in the box, typically taking only around 15 minutes.

The Bolt Pro’s foldability is unique because it only collapses at the handlebars— riders can also lower the seat to make it even more compact. I think this semi-fold design is a benefit because traditional frame-folding bikes can be difficult to use and make riders never actually take full advantage of the complete foldability. The extra-small 14” wheels help the silhouette remain compact.

My favorite feature is probably the integrated handle between the batter and the top tube. It’s placed around the bike’s center of gravity so it can be carried with one hand with proper balance— that said, the bike still weighs a hefty 42 lbs. that’s lighter than other full-sized e-bikes but will still be a challenge to haul upstairs.

Key Features

Frame 3/5

The Jetson Bolt has a steel alloy frame that surrounds the battery and can fold at the steerer tube. Available in only one size, the Bolt Pro is a compact e-bike that best fits smaller or shorter riders. Tall riders will find that the seat can’t be raised high enough, and their knees must bend a lot while pedaling.

Another detail I noticed is that the frame geometry places the seat directly above the rear wheel rather than a bit further forward like on standard bikes. This means heavier riders will put more force on the rear tire, and it can look squished as if it is flat or losing air. The Jetson Pro is rated for riders 12 years and older with a maximum rider weight of 265 lbs.

Motor 4/5

I rate the motor highly on the Jetson Bolt Pro because it delivers plenty of power for the bike’s intended use. It engages relatively smoothly, and it’s a huge plus that it can operate in both throttle and pedal assist modes. The 15.5 mph top speed works well for typical stop-and-go riding within the city grid but isn’t great for faster riding on open trails or bike paths.

Riders who want to retrofit their current bike with an electric motor can do so with an electric bicycle kit. Browse our picks for the best electric bike conversion kits.

Battery and Range 3/5

For such an affordable e-bike, the battery’s performance is decent, but I was expecting more. Many e-bikes on the market today boast a range of between 40-60 miles, but the Bolt Pro maxes out at 30 miles on a single charge, and that’s on a good day. Many users reported less range on most rides and very slow charging.

The battery isn’t removable either, so riders need to bring the entire bike inside in order to charge it, rather than locking up the bike outside and simply carrying in the battery. The bike won’t take up much space inside your garage, house, or office, but the flexibility of a removable battery is ideal. The Jetson Haze features a removable battery.

Brakes 5/5

I appreciate the dual disc brakes on the Jetson Bolt Pro that deliver powerful and predictable stopping force. Ebikes can zoom fast and require brakes that are stronger than traditional rim brakes, especially in wet or humid conditions. It’s not recommended to ride the water-resistant Bolt Pro in heavy rain, but at least riders can rely on decent-quality disc brakes.

Jetson Bolt Pro Full Specs

For an in-depth look at the Jetson Bolt Pro, watch this video overview of the folding e-bike.

Frame Steel Alloy
Wheels 14”
Motor 350-watt rear hub motor
Battery 36V, 6.0 lithium-ion
Throttle type Twist throttle
Pedal assist Yes
Max. speed 15.5 mph
Max. range Up to 30 miles with pedal assist
Brakes Front and rear disc brakes
Folded Dimensions (L x W x H) 46.5″ x 19.3″ x 23
Unfolded Dimensions (L x W x H) 46.5″ x 19.3″ x 38.6″
Charging time Up to 4 hours
Weight limit 265 lbs.
Product weight 42 lbs.
Frame colors available Blue, Green, Black
Price 499.99

Overall Impression 7/10

At the price of the Jetson Bolt Pro, it can be difficult to purchase a standard bike, let alone an electric bike with 350 watts of power. The Bolt Pro is a great way to try out riding an e-bike without breaking the bank and can be perfect for short city trips. That said, Jetson does leave out some key features like a long-range, removable battery and slightly larger wheels.

Taller or heavier riders should look elsewhere for an e-bike, and riders who expect serious weekly mileage can seek a model with a longer range. If the Bolt Pro ticks everything on your wishlist, it’s a Smart investment, but I wouldn’t write off browsing other compact e-bikes on the market.

Our verdict: Impressively affordable folding e-bike that’s easy to carry but lacks in comfort.


  • Innovative frame design to make carrying the bike easier
  • Capable 350-watt motor with a top speed of 15.5 mph
  • Twist throttle and pedal assist
  • Easy to assemble and fold when transporting
electrek, review, jetson, bolt


  • Battery isn’t removable so bike has to be carried inside to charge
  • Small 14” wheels are sensitive to bumps and potholes
  • Slow charging rate can take a while

How the Jetson Bolt Pro Stacks Up

Jetson Bolt Pro Aventon Sinch RadExpand 5
Motor 350W 500W 750W
Range 30 miles 30 miles 45 miles
Gearing Single-speed 7-speed 7-speed
Wheels 14” 20”x4.0” 20”x4.0”
Price 499 1,399 1,549

Similar Models to the Jetson Bolt Pro

Aventon Sinch Foldable Ebike

The Sinch is a fully-collapsible electric bike made by Aventon, one of the most popular ebike brands on the market. Unlike the Bolt Pro, the Sinch folds at the frame and has front suspension, 7 gears, and wide fat tires. The range and top speed are a bit higher at 40 miles and 20 mph, respectively. Those performance gains come at a premium, though. The Sinch costs 1,399 which is much pricier than the Bolt Pro but still a great deal for an ebike.

RadExpand 5 Electric Folding Bike

Another e-bike heavy hitter is the Rad Power Bikes brand which offers the RadExpand 5 folding electric bike. A direct competitor of the Aventon Sinch, this model boasts an impressive 750-watt motor and included rear rack. The externally mounted battery is easy to remove and charge. This model is ready for everything from rugged gear hauling to off-road adventures. The RadExpand 5 costs 1,549.

​​If you liked this article, you might also like:

Frequently Asked Questions

The Jetson Bolt Pro electric bike can ride up to 30 miles on a single charge. However, the battery life can vary depending on things like terrain, rider weight, and whether you’re riding in throttle or pedal assist modes.

The Jetson Bolt Pro has a top speed of 15.5 mph.

Riding the Jetson Bolt Pro in the rain is not recommended, as it is not waterproof. Water damage can harm the bike’s electronic components, including the battery.

Folding e-bikes can be worth it if you need a compact and portable bike for commuting or storing in a small space. They are also convenient for travel and transport. However, they may not be as comfortable as full-sized bikes and may have a limited range and speed.

The Jetson Bolt Pro is designed for riders who weigh up to 265 pounds and have a minimum height of 4’5″. Therefore, children shouldn’t ride the Jetson Bolt Pro unless they meet these requirements.

Yes, the Jetson Bolt Pro has a pedal-assist mode, which means that you can pedal the bike while the electric motor provides assistance. The standard Bolt model is pedal-free and only has a throttle mode.

Have more questions about the Jetson Bolt Pro folding e-bike? Drop us a line below!

Jeffrey Brown is a writer, editor, and professional bike mechanic with over 7 years of experience working in full-service and community-based bike shops. As a bicycle educator, he has supported youth programs across the US that teach bike mechanics and life skills to prepare the next generation of cyclists.

Jeffrey began his professional mechanic career at his university bike co-op, so he recognizes the grassroots power of the cycling community. Initially self-trained as a mechanic, his subsequent positions as manager and lead educator gave him official training. He has won various awards and grants for his role as a bicycle and environmental advocate.

The Best Bike Lock

In the “What about the Hiplok D1000?” section, we have an update on our continued testing of a promising, though expensive, new lock.

Although pandemic-related bike shortages have eased, bike thieves are still a persistent plague. The first line of defense: a good bike lock.

To find the best bike lock, we ordered 33 of the toughest we could find and then sawed, chopped, and cut them to pieces.

We learned that almost every lock can be defeated in under a minute, but the Kryptonite New-U Evolution Mini-7 offers enough of a security advantage over other locks in its price range to keep a modest commuter bike from becoming an easy target for thieves.

Things to know

No lock can keep a determined thief at bay forever. But a good one might persuade that thief to move on to an easier target.

Using hacksaws, two sizes of bolt cutters, cordless drills, and angle grinders, we destroyed 33 bike locks from 14 companies.

Our main pick, upgrade pick, and favorite chain come with insurance, but you have to register your lock for it to take effect.

The best bike lock

With a dual-locking hardened 13 mm shackle, an included cable, and a free year of anti-theft protection, the Kryptonite New-U Evolution Mini-7 is a good deterrent at a reasonable price.

Buying Options

At the time of publishing, the price was 91.

The Kryptonite New-U Evolution Mini-7 should withstand attacks from everything but power tools under most circumstances.

Once our testing began, we immediately saw the huge advantage this lock had over the competition: Its 13-millimeter hardened shackle (the big U-shaped loop that gives U-locks their name) can withstand bolt cutters, eliminating a large percentage of potential thieves.

Measuring 7 inches long and weighing a little under 3 pounds, it’s the perfect size for most people—long enough to lock the wheel and frame of most bicycles to a rack while leaving almost no room for someone to wedge a pry bar or a car jack inside it.

On top of that, the shackle in this design has an additional cutout at the end, which makes rotating (and therefore removing) it after cutting it even more difficult.

The New-U Evolution Mini-7 uses a disc-detainer locking mechanism, which is much harder to pick than a typical wafer lock and should foil all but the most savvy criminal using specialty tools.

It also comes with a 4-foot cable to secure the front wheel, plus a free year of Kryptonite’s anti-theft protection. Two caveats on the latter: You must register your lock within 30 days of buying it, and the anti-theft protection on this lock does not apply to residents of Manhattan, where theft is very high. (The company’s New York lock series—including our upgrade pick and the chain pick below—is covered even in Manhattan.)

An even stronger lock

This lock is more secure than our top pick, but it also weighs a lot more.

Buying Options

At the time of publishing, the price was 159.

With an 18 mm dual-locking hardened shackle, the Kryptonite New-U New York Fahgettaboudit Mini held up better than any other lock—except one—against cutting attacks. (That exception is the Hiplok D1000, which costs 300; see “What about the Hiplok D1000?” for more about it.) Even with a powered cut-off wheel, our testers took over a minute to make the two cuts necessary to remove it—four times longer to grind through than with the New-U Evolution Mini-7. However, this lock doesn’t come with a cable, and it weighs almost 4.5 pounds, a full pound and a half more than the Mini-7. But if you’re in a high-risk area, and can’t spend 300, this lock is the one to buy. Like our top pick, it uses a very secure disc-detainer mechanism, and it’s long enough to fit around your bike’s frame and your wheel without becoming too cumbersome. For extra peace of mind, it also comes with a free year of the highest level (5,000) of anti-theft coverage from Kryptonite. (Again, you have to register your lock within 30 days of purchase for the coverage to take effect.)

Best chain for the money

If you need more length in your lock and weight is of little concern, the 10-pound Fahgettaboudit Chain is really tough.

Buying Options

At the time of publishing, the price was 116.

If you want to secure more than just your bike frame and wheel, if you have a cargo or electric bike that needs a longer lock, or if your favorite spot to lock up is around a street post, go with the Kryptonite New York Fahgettaboudit Chain, which is one of the toughest chain locks we tested. We encountered other chain locks that were harder to cut through, but they either cost more or weighed more. It has 3 feet of 14 mm hardened links held together by a 15 mm Kryptonite New York Disc Lock, and it should keep all but the most determined thieves at bay.

A medium-security folding lock

This relatively lightweight folding lock can wrap around odd angles more easily than a U-lock and is more secure than a cable lock—but it’s not nearly as strong as a chain, and it’s pricey, too.

Buying Options

At the time of publishing, the price was 76.

If security is your only concern, we recommend skipping a folding lock altogether because the rivets are easy to break. But there are a few special requirements that folding locks can accommodate that other options can’t: You can lock them around large or strange shapes like handrails or lamp posts, they’re much sturdier than cables, and they’re a lot lighter than chains (and a pound lighter than our top U-lock pick, even minus its cable). We believe the Kryptonite Keeper 585 offers the best combination of security, weight, and price among folding locks. It also comes in a longer, 100 cm (39-inch) version, the Keeper 510.

The Keeper 585 measures 85 cm (32 inches) long, weighs 1.7 pounds, has 3 mm hardened steel rivets, and comes with 500 of anti-theft protection from Kryptonite. Is your bike worth thousands more than 500? That should tell you everything you need to know—get a stronger lock.

The best bike lock

With a dual-locking hardened 13 mm shackle, an included cable, and a free year of anti-theft protection, the Kryptonite New-U Evolution Mini-7 is a good deterrent at a reasonable price.

Buying Options

At the time of publishing, the price was 91.

An even stronger lock

This lock is more secure than our top pick, but it also weighs a lot more.

Buying Options

At the time of publishing, the price was 159.

Best chain for the money

If you need more length in your lock and weight is of little concern, the 10-pound Fahgettaboudit Chain is really tough.

Buying Options

At the time of publishing, the price was 116.

A medium-security folding lock

This relatively lightweight folding lock can wrap around odd angles more easily than a U-lock and is more secure than a cable lock—but it’s not nearly as strong as a chain, and it’s pricey, too.

Buying Options

At the time of publishing, the price was 76.

Why you should trust us

Duncan Niederlitz has worked in the bicycle industry since 2002 on both coasts of the United States, as well as abroad. He has owned many of the locks we’ve tested and has worked at shops selling all of them, occasionally having to cut them off bikes. Between that and the work he did for this guide, he has spent hundreds of hours researching, selling, using, and testing bike locks.

Eve O’Neill, a former senior staff writer covering outdoor gear for Wirecutter, started in 2014 as our first bike reporter.

We contacted John Edgar Park, an avid lock-picking enthusiast and instructor with over 20 years of experience, and we sat down together to review all the locks we had received to vet them for lock-picking vulnerabilities. In addition, we made arrangements to get in touch with a lock-picking group, and we visited on a night with a presentation on high-security disc-detainer locks. The meeting was in an unmarked room in an unmarked building, and everyone who gave a presentation used their Def Con code names.

We also corresponded with Mark Podob of Metlab, a heat-treating and metallurgic-consulting company, to gain insight into how locks are constructed.

We ended up choosing four Kryptonite locks, and we know how that kind of thing can look. But we think the data speaks for itself. Duncan was working at a bike shop in 2004 when the Bic pen fiasco went down (he appeared on the local news station demonstrating the technique), so we approached this guide with a skeptical view regarding any lock manufacturer’s claims.

Who this is for

If you ride a bike and ever need to leave it unattended, you should carry (and use) a sturdy bike lock—at least if you want the bike to be there waiting for you when you return. And if you live in an area where garage or apartment-building bike-room break-ins are common, you may even want to lock your bike up when it’s seemingly safe at home, too. Unfortunately, as we’ve discovered through both our testing and our own painful experience, no lock can keep a determined bike thief at bay forever. However, a good one might persuade that thief to move on to a less well-defended target.

How we picked

We spent many hours researching all the locks available from the major brands in the bicycle industry, attended trade shows to see not-yet-available options, reviewed earlier versions of this guide, and searched for well-reviewed locks from smaller companies or lesser-known brands.

Manufacturers make locks in a range of similar styles. Considering their supposedly different levels of security and proprietary ratings systems, however, it can be hard to decide which locks are comparable, other than blindly going by price or researching the ratings from independent organizations such as ART in the Netherlands and Sold Secure in England. Unfortunately these institutions use different rating scales, and not all lock manufacturers submit all of their locks to be tested. And although these independent labs return a rating, they do not make the reasoning behind the rating (or the tests they used to come to that conclusion) available to the public, so looking at their ratings still gave us only a rough idea of the security of any one lock.

We decided that our only way forward was to order the most expensive locks from every company we could and test them to destruction to set a baseline for what each company considered its highest level of security. We then ordered the budget locks from our previous guide, as well as some of the upgrades from companies that had finished well in our first round of tests, and destructively tested all of those, too. We eventually destroyed 35 locks from ABUS, Altor, Artago, Blackburn, Foldylock, Hiplok, Knog, Kryptonite, Litelok, Master Lock, OnGuard, RockyMounts, Schlage, and TiGr.

How we tested

To truly test the effectiveness of a bike lock, you have to think like a bike thief. From our experiences working in shops over the years and interviewing professional bike thieves (yes, we’ve done that), we created a list of the most common tools that bicycle thieves use to defeat bike locks. It became the checklist that each model in our group of locks would need to survive to become a pick.

To be clear, the following is not a guide to stealing bikes. But to assess the security of bike locks, you have to really understand how they get stolen in the first place.

The tools

Lock picks: These require a lot of skill to use, and different locks require assorted tools and pose varying degrees of difficulty to pick. However, once a thief has the tools and the proficiency to quickly open a particular lock, the process merely becomes a matter of walking the streets and looking through racks of bikes for a target lock they recognize as being easy to open.

Cable cutters: Thieves carry out a large number of bike thefts (possibly most of them) using a simple pair of diagonal wire cutters. Unfortunately, the only reason simple diagonal cutters are so effective is that many people continue to lock their bicycles using just a braided steel cable and a padlock or a basic cable lock, even though such devices should be used strictly as accessory locks in most situations. A good set of bypass cutters can cut these locks in a single pass, and a tiny set of diagonal cutters can do so with multiple snips.

Bolt cutters: During Duncan’s work in shops over the years, he has heard hundreds of stolen-bike stories and has seen many cut locks, and most of them (not including snipped cable locks) have been cut with bolt cutters. Bolt cutters can be quite small and are quick to cut through certain kinds of locks.

Hacksaw: A hacksaw can work through a nonhardened lock quickly. Most chains from the hardware store, cheap U-locks, and cable locks can be defeated with a hacksaw. A hacksaw can be slow on a thicker lock, may catch and bind while trying to cut through a cable, and takes some physical effort to use in general.

Cordless drill: This is a rarer tool for bike thieves, as it works well on only a few types of locks, and most of those are also easier to defeat using other methods. But occasionally drills do see use (most often during an attempt to drill out a lock’s core). The locks that drills work well on (such as folding locks) have become more popular, though.

Angle grinder: A thief with a battery-powered angle grinder will defeat any lock if given enough time—even the Hiplok D1000, though the thief had better be carrying a pile of spare disc blades to crack that lock. For the thief, the biggest drawback of a grinder is the noise and sparks it emits as it grinds through hardened steel. In the past, cordless tools didn’t have the power for such uses, but battery technology has advanced enough that they can perform just as well as their corded counterparts, and thus they have changed the landscape of bicycle security. It’s hard not to notice one of these tools, but a thief who can mask the noise and is brazen enough to use one will probably be successful in stealing the bike.

We did not pry open any locks with car jacks, because the jack would have to fit inside the shackle. You can make that kind of attack more difficult by using good locking technique, which means choosing a lock size that leaves very little room inside the shackle to fit a tool—all of the locks we tested were too small to accommodate a jack.

After we had our list, we needed to decide how the results of the tests would allow us to rank the locks. We believe that any form of security is only as good as its weakest part—think of a locked house with an open window, for instance, or a computer operating system with a backdoor. So we decided that the more quickly a lock could be opened, regardless of how well it performed in other respects, the lower it would score.

The first test would show if any of the locks could be picked (some could). The second would reveal whether any would fall victim to bolt cutters (some did), hacksawing (sadly), or drilling (no problem). The last would demonstrate how long each lock would take to cut through with an inexpensive portable angle grinder (quicker than you might think). After we completed all the tests, we ranked the locks based on their security and price to see where they stood, and then we factored in features such as durability, weight, portability, and ease of use.

Lock picking

The next test: bolt cutters. These tools are available at any home improvement store and usually make a sound during a theft only after it’s too late, when the lock splits apart and the thief is off with your bike. You could be within 20 feet of your bike and still not hear it. For our tests we used cutters of two lengths, a 24-inch HDX pair from Home Depot and a 36-inch Tekton 3421.

Some of the locks we tested claimed to be resistant, but most of them fell to our bolt cutters eventually. The easiest U-locks to cut through appeared to be only case-hardened, which seems to do little to stop bolt cutters since the tool’s jaws can crush and split the softer metal underneath the hardened shell. expensive locks are hardened more thoroughly, via a different heat-treating process.

Despite the hardened outer shell on these U-locks, our smaller bolt cutters were still able to crush the softer inner metal. Photo: Duncan Niederlitz


We weren’t expecting notable results from the hacksaw test, as even modest case-hardened steel usually deters a hacksaw. However, the Altor and TiGr locks we tested were both made of titanium, which is tough but not very hard, and the hacksaw proved that: With the hacksaw, we cut through each lock, held in a vise, in less than 30 seconds. Using the vise probably resulted in a cut time quicker than that of most real-world scenarios, but practiced thieves have vise-like tricks (using zip ties or leaning against the bike to steady it). The RockyMounts U-lock we tested used stainless steel, a material rarely found in bicycle locks, which to our eyes appeared to have been left unhardened; despite the lock’s large shackle diameter, our hacksaw cut through in just 90 seconds.

We were able to cut the RockyMounts Compton Large with a hacksaw when we held it in a vise. Photo: Duncan Niederlitz

We were able to cut the RockyMounts Compton Large with a hacksaw when we held it in a vise. Photo: Duncan Niederlitz

Cordless drill

Although a small cordless drill is louder than bolt cutters, it’s still barely noticeable over the sounds of a busy street. The drill we used in our testing was a 12 V Milwaukee Fuel, which is small enough to put into a jacket While the Altor gave in to the bolt cutters and the ABUS Folding Lock Bordo Granit X-Plus did as well after much effort on our part, the drill easily defeated both. A quick look was all we needed to see that the hinge was probably the weakest component of each system, and we quickly removed the locks by drilling straight through the rivet holding the hinge together.

Angle grinder

We knew all the locks would fall to the 7,000 rpm of an aluminum-oxide disc—we just weren’t sure how long it would take. After years of hearing anecdotes from bike-shop customers, reading marketing literature, and removing the odd lock here and there, we expected it would take more than a minute for us to complete one cut.

We charged all the batteries we had for our cordless grinder, made extra coffee, and mentally prepared for the hours of grinding that lay ahead of us. Then the first lock took 14 seconds to cut through. The next, 15. Some of the locks couldn’t survive past the 10-second mark; the thickest and strongest ones resisted for only 30 seconds before we made one cut. (In 2022 and 2023, we took an angle grinder to the Hiplok D1000 U-lock, which its makers says resists angle grinders. See “What about the Hiplok D1000?” for the results.)

The best bike lock

With a dual-locking hardened 13 mm shackle, an included cable, and a free year of anti-theft protection, the Kryptonite New-U Evolution Mini-7 is a good deterrent at a reasonable price.

Buying Options

At the time of publishing, the price was 91.

The Kryptonite New-U Evolution Mini-7 U-lock incorporates a wider combination of theft-resistant features than almost anything we’ve looked at that isn’t twice the price or twice as heavy. It has a more thoroughly hardened, dual-locking shackle, which lesser locks don’t have, and it’s outfitted with a more secure disc-detainer locking mechanism. It also comes with a 4-foot cable and a free year of the company’s anti-theft protection (as long as you don’t live in Manhattan and you remember to register your lock within 30 days of purchase). This model is nearly 30 more expensive than the New-U KryptoLok Standard, which shares some of its technology (specifically, the locking mechanism and the dual-deadbolt shackle), but it includes a year of Kryptonite’s protection coverage, up to 2,500. (You have to pay 10 for the first year of protection on the KryptoLok, and that coverage pays up to 1,750 at most.)

Instead of using just a case-hardened shackle, the Evolution series uses a harder steel shackle and a hardening process that, while not technically “through hardened,” still allowed the Mini-7 to withstand more abuse in our tests than other locks at the same price. We cut lesser locks with only 24-inch bolt cutters, but the New-U Evolution Mini-7 withstood even our 36-inch cutters, surviving with just a couple of small scratches.

The New-U Evolution line also uses deadbolts on both sides of the shackle, rather than having a non-locking bent foot on one end. The advantage of the new shackle is that a thief would most likely need to make two cuts with a power tool to pry it open. And after making those cuts, the thief would need to twist the shackle off; on the New-U series, Kryptonite has added a small cutout to each end, making it that much harder to twist off.

The lock also incorporates the more secure disc-detainer locking mechanism. This style of keyway and mechanism is resistant to picking, requiring specialty tools, patience, and skills. After consulting with multiple lock-picking enthusiasts and experts, we decided that the chances of having a disc-detainer lock picked on the street are very slim, in contrast to the likelihood for some of the other lock types we tested. (The YouTube personality LockPickingLawyer posted a video in February 2021 demonstrating how, with a tool he designed, he was able to pick the New-U Evolution in less than a minute. However, considering his level of expertise and the conditions he was working in—able to hold the lock in his hands under good lighting—we believe that brute-force attacks pose more of a problem in real life.)

A look at the dual-locking shackle from our pick. Notice that the end is not rounded, a feature designed to prevent rotation of the shackle if it’s cut. Photo: Kyle Fitzgerald

A look at the dual-locking shackle from our pick. Notice that the end is not rounded, a feature designed to prevent rotation of the shackle if it’s cut. Photo: Kyle Fitzgerald

The New-U Evolution has a durable protective rubber coating on all the main parts to prevent scratches on your bike’s paint. It’s also available in multiple sizes, but we think the 7-inch size (which weighs about 3.5 pounds, cable included) is ideal for most people. If you are commuting on a bike with large tires and need to lock both wheels, the Mini-7 might not be long enough to fit over the tire and frame. You can solve that problem by adding locking wheel skewers, but Kryptonite also sells the New-U Evolution in a larger size without the cable. If you are unsure about the fit, swing by your local shop to check.

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Flaws but not dealbreakers

We still believe that thanks to the hardness of the shackle and the difficulty of squeezing a car jack into a properly locked New-U Evolution Mini-7, it will thwart most attacks (other than with an angle grinder) better than any other lock at this price. But if you’re in a high-risk area or if you live in Manhattan, where the only locks covered by Kryptonite’s anti-theft protection are the New York series, you should probably upgrade to the Kryptonite New York Fahgettaboudit. And if you own a particularly expensive or hard-to-replace bike, you might even want to consider the Hiplok D1000.

And although the Mini-7 comes with one of the better mounts for attaching it to a bike frame, that isn’t saying much. U-locks are the bane of bicycle mechanics everywhere because the mounts always seem to be in an awkward spot or to come loose over time. If at all possible, carrying this lock on a rack or in a basket is definitely the preferred method, but the mount will suffice.

Upgrade pick: Kryptonite New-U New York Fahgettaboudit Mini

An even stronger lock

This lock is more secure than our top pick, but it also weighs a lot more.

Buying Options

At the time of publishing, the price was 159.

The Kryptonite New-U New York Fahgettaboudit Mini U-lock is a workhorse. You won’t find any special features or frills, just a lot of lock—4.55 pounds’ worth. It uses a through-hardened dual-locking shackle and extra metal in the crossbar for even more security. The 18 mm shackle has a cross-sectional area twice that of the New-U Evolution’s 13 mm shackle and thus takes twice as long to cut through. Since this lock is in Kryptonite’s New York series of locks, it’s covered by the company’s theft protection even in Manhattan (The coverage is for 5,000—or the cost of your insurance deductible, should the theft be covered—and it’s free for the first year. You can extend it for up to five years, for an additional cost of up to 35.)

Like the New-U Evolution, this lock employs a disc-detainer locking mechanism; also like the New-U Evolution, the New-U New York Fahgettaboudit wasn’t able to withstand the attentions of YouTuber LockPickingLawyer for more than a minute. However, as with the New-U Evolution, we’re less concerned about lock picking than we are about bolt cutters and angle grinders.

The only significant downside to this lock, other than an increase in price over the New-U Evolution, is that it’s much heavier. But as our tests showed, a more hardened metal (and more of it) is the key to more security. The New-U New York Fahgettaboudit Mini also does not include any mounting hardware for attaching it to your frame (though we doubt that the mount would even stay in place considering this lock’s weight), and unlike our top pick it does not come with a cable.

Also great: Kryptonite New York Fahgettaboudit Chain

Best chain for the money

If you need more length in your lock and weight is of little concern, the 10-pound Fahgettaboudit Chain is really tough.

Buying Options

At the time of publishing, the price was 116.

Sometimes you need a chain lock. The Kryptonite New York Fahgettaboudit Chain is the best chain for the money for high-security situations. It uses 14 mm through-hardened links and comes in a fairly standard 39-inch length (which weighs more than 10 pounds) as well as in a giant, 5-foot version (15-plus pounds). The chain is connected by Kryptonite’s 15 mm New York disc lock, which employs a dual-locking shackle and a disc-detainer mechanism. And because it is in Kryptonite’s New York series of locks, it is covered by the company’s anti-theft protection in Manhattan.

A medium-security folding lock

This relatively lightweight folding lock can wrap around odd angles more easily than a U-lock and is more secure than a cable lock—but it’s not nearly as strong as a chain, and it’s pricey, too.

Buying Options

At the time of publishing, the price was 76.

There’s a small intersection in the bicycle-lock world, a place where the features of a U-lock, chain, or cable don’t neatly triangulate. Perhaps you regularly find yourself in a location where a U-lock can’t fit around what you’re trying to lock your bike to, but a chain is much too heavy for you to carry, and a cable lock isn’t secure enough (for what it’s worth, we do not recommend cable locks used alone, ever, because they are so easily snipped). In that case, a folding lock might be the solution to your problem, and among models in that category, the Kryptonite Keeper 585 offers the best combination of security, weight, and price.

The Keeper 585 folding lock measures 85 cm (32 inches) long and weighs 1.7 pounds, and it comes with 500 of anti-theft protection from Kryptonite (this protection, as with all Kryptonite locks that are not part of the company’s New York series, is not valid in Manhattan). A folding lock is not very secure because the rivets in the hinges are easily compromised with a drill. And folding locks also don’t provide that much weight or size advantage over a U-lock.

The rivets on the Keeper 585 are 3 mm hardened steel. You can find folding locks that use thicker, 5 mm rivets, such as the Rocky Mounts Hendrix and even other Kryptonite models, but we drilled through them in nearly the same amount of time as we did the smaller rivets. Judging from our findings, we can say it takes a lot more than an additional 2 mm of metal—more like 10 mm (which you’ll find on the 13 mm shackle on our top pick)—to get in the way of power tools.

One advantage of a folding lock is that it can wrap around large or awkwardly shaped objects. (We locked this bike-share bike for demonstration purposes only!) Photo: Sarah Kobos

The Keeper 585 comes with a carrying case that you can strap onto your bike’s frame. Photo: Sarah Kobos

One advantage of a folding lock is that it can wrap around large or awkwardly shaped objects. (We locked this bike-share bike for demonstration purposes only!) Photo: Sarah Kobos

Giving up on those bigger rivets in favor of the Keeper 585 gives you a lock that’s nearly a pound lighter and 10 to 30 cheaper. And it still carries a bronze rating from Sold Secure, the same rating as on all other Kryptonite folding locks, even the bigger, more expensive versions. The folding lock with the highest Sold Secure rating is the ABUS Bordo Granit X-Plus, but that’s 4 pounds of lock that costs over 100. If you need something very strong, such as if you’re trying to lock up an ebike, we recommend passing on a folding lock and getting a fat chain instead—same price, but you get 14 mm of steel versus 5 mm of steel. For greater security, it’s a no-brainer.

In addition, Kryptonite offers an anti-theft warranty with its folding locks, in this case up to 500 in the event the lock is compromised. (Again, you have to register your lock within 30 days of buying it.) This lock also comes in a longer version, the Keeper 510. It’s the same thing but 100 cm (39 inches) long and an extra 0.2 pound as a result of the longer length.

What about the Hiplok D1000?

In the fall of 2021, the British bike lock company Hiplok announced that it had made a lock, the D1000, using a graphene-reinforced ceramic composite designed to withstand a portable angle grinder, and it launched a Kickstarter campaign to publicize it. After the funding period was over, at the end of October, Hiplok sent us a sample lock (we don’t test or evaluate products while they’re still in crowdfunding) that was, they told us, one of the first 30 made. Duncan Niederlitz, who did the lock testing (and destroying) for the 2017 edition of this guide, hauled out his portable angle grinder to demolish the sample lock. He went through two disc blades cutting through the lock on the first try, going very carefully and trying not to let the disc blades catch. On the second attempt, he went faster, pushing harder, and it took five blades to cut through the lock. A third, slower attempt also took five blades. “If I was a thief,” he said, “I’d probably quit after the second wore out—if I even carried a spare.”

In order to be sure that the lock we tested ends up being the same lock regular customers will receive, we ordered two more locks as soon as we could, in May of 2022, on the Hiplok website. When they arrived, late in September, Duncan took one and revved up his angle grinder again. He reported that the lock we bought performed just as well as the preproduction one: “Took another five blades to cut through it once, which left a 0.75-inch gap if pulled apart, so someone would probably need to cut it twice” to actually get it off. (The shackles are square, so you can’t twist them to make the gap wider.) He then tried a metal-cutting diamond blade, which didn’t wear down as the regular blades did, but it took him three minutes and 40 seconds to cut once through the shackle—it lasted far longer than any other lock we’ve tested. And this was, of course, under optimal conditions: in a well-lit area, with a vise holding the lock steady.

Hiplok’s specs say that the lock weighs 1.9 kilograms (4 pounds, 2.8 ounces); our kitchen scale says 1.925 kilograms (4 pounds, 3.9 ounces). Either way, that’s less than our upgrade pick, the Kryptonite New-U New York Fahgettaboudit Mini, weighs. (The two locks are nearly identical in terms of their interior dimensions.) The Hiplok costs twice as much as our upgrade pick, and it doesn’t offer any kind of protection coverage like Kryptonite does. Still, given the results of our testing, we’re weighing making it our upgrade pick later this year, after we’ve seen how the lock withstands other modes of attack and how it stands up to daily life (and dirt, water, and wear) on the streets of New York City. Update: As of May 2023, no would-be thief has tried to defeat the D1000 that one of our NYC-based staff members is using to lock his bike. He’ll keep tempting them.

Other good bike locks

If you need a lock for a bike-storage room or garage: Consider the Kryptonite New York Legend Chain, which is the strongest chain we tested but too big and heavy to carry around. (It weighs nearly 15 pounds and measures nearly 5 feet long; unlike the New York Fahgettaboudit Chain, it does not come in a shorter, lighter version.) The New York Legend Chain’s bulk makes it best suited as a leave-in-place lock, not one you would bring with you and use multiple times a day.

If you want a folding lock with more anti-theft insurance: Check out the Kryptonite KryptoLok 685, 610, and 610 S folding locks, which are all stronger versions of our folding-lock pick. The main difference is that they have rivets measuring 5 mm thick, instead of 3 mm. We wouldn’t spend the extra money on any of them for that reason alone, as in our tests a drill still defeated them easily. However, they all come with a much bigger insurance policy: 1,750, versus the 500 of coverage that comes with our top folding choice. If that’s of value to you, upgrading to one of these versions would be worth the investment. Of the three, we’d choose the 610 S; all other things being equal, the narrower design is nice and gives the 610 S a more streamlined fit if you mount it on a down tube.

The competition

Kryptonite Evolution Mini-7: This model, our previous top pick, was replaced by our current pick, the New-U Evolution Mini-7. (Although you may still see it for sale at some retailers and on Amazon, it no longer appears on Kryptonite’s website.) The main difference is that it locks on only one side, in contrast to the New-U Evolution Mini-7, which has a dual-locking shackle.

Kryptonite New-U KryptoLok Standard: This U-lock employs a disc-detainer mechanism, like the New-U Evolution does, and it now comes with the same double-deadlock design as our top pick. (The version we tested did not.) However, the biggest problem with this lock hasn’t changed: Bolt cutters can cut through it. We believe that spending more on a more-hardened lock, such as the New-U Evolution, could drastically reduce the percentage of thieves with the tools necessary to cut your lock.

Kryptonite KryptoLok Series 2 995 Integrated Chain: This chain’s biggest drawback is that a thief could cut it with bolt cutters, but in our tests the square shape of the 9 mm chain tended to slip out of the jaws of the cutters, and breaking it required quite some work on our part. This model would be a good secondary lock and chain.

Kryptonite New York Cinch: This chain is lighter and less expensive than the New York Fahgettaboudit Chain, and as a result it brings a slight decrease in security. If you already need so much security that you’re considering this model, getting the New York Fahgettaboudit Chain makes more sense.

Kryptonite TKO Folding Bicycle Lock: This folding lock is sold exclusively at Walmart, and for a very tempting price (about 25). It is made by Kryptonite, but that’s all it has in common with our picks. Walmart describes it as a “modern, high-security lock,” but its Kryptonite Security Level is “3”—suitable only for a quick stop in a rural area. Our tester was able to pop the rivets on the one we purchased, using a short length of pipe, in less than 10 seconds.

OnGuard: Generally, OnGuard locks did very well in our strength tests, with cutting times close to those of our top picks. But when we did our testing, we discovered that the huge deficiency of OnGuard locks, including the OnGuard Brute STD, OnGuard Beast 8016, and OnGuard Pitbull STD, was the lock mechanism itself. At that time, OnGuard used wafer locks, in contrast to the more secure disc-detainer style on our picks; wafer locks are particularly easy to pick without fancy tools or advanced skill. Since then, OnGuard has changed its models’ cylinders to the slider type, which can be more secure depending on how many sliders are involved. We’re putting these locks back on our list to test.

ABUS Folding Lock Bordo Granit X-Plus: Though folding locks are tempting for their light and compact design, they’re not as high-security as their makers claim, as a thief can easily defeat them by drilling out the unhardened pins that hold the links together. With enough patience we were also able to pop this model’s links apart by working large bolt cutters into the joints, as House of Chain demonstrates on a smaller version of the Folding Lock Bordo in this video. The Bordo Granit X-Plus would be okay for low-crime areas, but its price is too high relative to the level of protection it provides.

ABUS Folding Lock Bordo Alarm 6000a: This upgraded version of the ABUS Folding Lock has all the same perks and flaws, with the added annoyance of incessant beeping every time it senses motion.

ABUS U-Lock Granit X-Plus: This U-lock was one of the lightest for its size, and we took significantly less time to cut through it than we did cutting through the Kryptonite New York Fahgettaboudit Mini.

Hiplok Gold: This chain lock has a design that allows you to wear the chain around your waist without locking it. (Wearing one locked is something that you should never do—keys get lost, locks jam, accidents happen, and paramedics need to be able to remove the lock easily in the event of an emergency.) It’s a nice feature, but the cut time for this lock was one of the quickest in our tests, and the real dealbreaker was our ability to snip it quickly with large bolt cutters.

Hiplok D Bike Lock: This lock has a double-locking shackle and is hardened, and we were unable to cut through it with bolt cutters. It uses a wafer-style locking mechanism (which is less secure than the disc-detainer locks on our picks), albeit a much better one than on the OnGuard models we tested; a thief could still pick it with more basic tools than they’d need for a disc-detainer mechanism, but to us it seemed much more secure than any of the OnGuard locks. Even with the dual-locking shackle, though, the Hiplok D showed some movement after one cut in our tests, enough for a thief to remove it from many bike frames.

RockyMounts Compton Large: This 18 mm lock was one of the heaviest we tested. It is made of stainless steel, which is harder than mild steel but definitely not as hard as hardened steel—something we proved in our tests, as we were able to cut through it in just over half the time we took to breach the Artago and Kryptonite locks, both of which also use 18 mm shackles. In addition, this was the least ergonomic lock we tested, with nonrubberized, sharp steel edges. (This lock appears to have since been discontinued.)

TiGr Mini: This has our favorite frame mount of all the locks we’ve tried, but the big dealbreaker is that it easily succumbs to cutting with bolt cutters, despite the maker’s claims to the contrary. We found a severe weak point between the main shackle and the locking mechanism, a gap that permits even small bolt cutters to shear the lock open. Also, titanium is tough but not necessarily hard, and we were able to saw through the TiGr Mini in under 30 seconds when we had it in a vise. TiGr now makes a “hardened steel” version of the lock; that version is on our list of locks to test next.

Litelok One: We found the Band of this lock extremely difficult to cut through without power tools. The arrangement of the cables against a flat metal strip is a clever idea and works particularly well for slowing these types of attacks. The dealbreaker: We used just a pair of small bolt cutters against the lock mechanism (this is where most thieves actually cut many cable locks, as it tends to be quicker), and the entire mechanism spread open. A second cut through the post made the lock come apart.

RockyMounts Hendrix: A folding lock, the Hendrix is more compact and slightly lighter (by 0.2 pound) than our folding-lock pick, but that’s because it’s 10 cm shorter (only 74 cm total). That length limits its usefulness—for instance, it didn’t fit the mountain bike we tried it on.

Foldylock Classic: Although this model carries a silver rating from Sold Secure—one step higher than the rating on the Kryptonite Keeper 585—we found security upgrades on folding locks to offer almost negligible benefit. (That is, the rivets on such locks are still vulnerable to drills.) The Foldylock Classic is a pound heavier than our top pick of the same length, and more expensive. The Foldylock Compact, despite being “compact,” has the same problem, as it’s still heavier and more expensive than our pick of the same length. And neither version comes with any theft protection.

Care and maintenance

Locks take a lot of abuse, from drops to rain to snow to road grime. Luckily, maintaining the locks we’ve chosen is easy: Just open the lock, clean out any grime you can see with a cloth, spray in some degreaser if it’s feeling gritty, and then spray in a dry lube (such as Tri-Flow Superior Dry Lubricant or Finish Line Dry Bike Lubricant) and rotate the key a few times in the lock. Kryptonite offers easy-to-follow instructions on its website.

This article was edited by Christine Ryan.

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