A monster model that will deter even the most prepared thieves. If you want your bicycle to be 100% safe, this is your best bet.
Extremely durable, heavy-duty construction. Meant for high-crime areas. Kryptonite will even replace up to $3,000 of your bicycle if it gets stolen when using this.
Heavy weight makes it difficult to carry around. Tumblers get “finicky” after a few weeks of use, making it a struggle to secure and unlock.
A durable and inexpensive lock that will keep your cycle safe from thieves without damage.
Locked by a keyless combination that is simple to use. Waterproof cover around chain to prevent scratching. Made of super sturdy metal and affordable. Easy to secure and change the combination.
Some said it was too short, or too heavy to carry. Can be cut with a bolt cutter.
In spite of occasional mechanical complaints, this is a good choice for securing a bicycle.
The 4-foot cable is adequate for a number of different locking configurations. Users found the mounting bracket sturdy, holding up to bumpy rides. Easy to set combination. Responsive customer service.
Mounting attachment doesn’t fit all frames. A few issues reported with the mechanism. As with most, not completely theft-proof.
One user deemed this “imposing." While bulky, it fits most frames.
Boasts an "imposing" U-lock and sturdy cable. The mounting bracket fits most cylindrical frames and can adapt to fit other tubing types.
A few reports of tumbler mechanism loosening and refusing to latch. Design is a bit bulky.
Customers appreciate the sturdiness and cloth sleeve of this locking chain despite its weight.
Offers 0.24-inch thick links with a total chain length of 3.3 feet. Cloth sleeve protects lock from dust and water. Keys cannot be removed unless locked, ensuring security.
Weight and thickness may be a bit of an issue.
We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.
For thieves, taking an unlocked bike is an easy decision. Yes, it'll ruin your day, but if your bike is just waiting unprotected, you've made it oh so easy for them. Selecting a quality bike lock is the first step in preventing bike theft.
We’ll provide you with a brief rundown of what to look for when browsing bike locks, what the advantages and disadvantages of specific locks may be, and we even provide you with some crucial tips on how to stop your bike from getting stolen, even with a lock in place. We also have a section to give you pointers on how to properly lock up your bike.
Read for our guide to selecting a bike lock, and when you’re ready to purchase, take a look at our recommendations to buy with full confidence.
When browsing the myriad of bike locks available for purchase, consider the following to ensure you're getting the right amount of protection.
Bike lock sizing is super important. Make sure your chosen lock is large enough to fit around your bike, and whatever object you're affixing it to, but don't pick a lock that leaves a lot of wiggle room. A tight-fitting lock is your best bet for properly securing your bike.
Some locks are wrapped in protective materials to ensure your bike doesn't get scratched. A soft housing might also be helpful if you plan on throwing your bike lock into your backpack. The casing will protect other objects from getting damaged.
Check to see if a particular lock has undergone testing. A high-quality lock has been thoroughly tested to ensure it's extremely secure and difficult to break.
There are three different locking mechanisms that you'll find in bike locks: keys, combinations, and electronic locks. It's up to each rider to decide what works best, but there are advantages and disadvantages with each bike lock option.
Locks that utilize keys are the most secure option, but you do need to remember to carry your key with you and not lose it along the way. Sure, a sneaky thief can try to pick a key lock, but they are tougher to crack than combination codes.
A combo lock means you don't have to worry about remembering to bring a key, but they are not super secure. Combination locks can be cracked, and some locks are pretty easy to cut open. Finally, there are electronic locks. This type of tech allows you to unlock your bike just by being near it, or by typing in a code. They're quite cool, but are more expensive than traditional locking mechanisms, and they aren't foolproof. Some models have advanced features, like alarms that alert you that your bike is being stolen. They also look expensive and may attract thieves. Many require a power source and need to be recharged. What happens when the battery runs out?
There are a variety of bike lock types available for purchase, each suiting different needs and types of riders.
Cable locks are the least secure of the bunch because they're quite easy to cut through. They're lightweight, which makes them easier to handle than other lock types. They can wrap around anything without much of a fight. They're best for locking up an inexpensive bike in a low-crime area.
These are really hard to cut because they're made of very strong materials and are shaped so that thieves will have a hard time finding space to maneuver their tools.
For a U lock to be effective, you need to select one that fits around your frame, but leaves very little space. Otherwise, you're spending extra money for no reason.
Chain locks look tough, and they are harder to cut through than cable locks, but they're not as resistant as a U-lock. They're heavier than other options, so they aren't a good choice for commuters who might find it annoying to lug around a clunky locking mechanism.
These are great for securing a bike to awkwardly shaped objects. They're light and compact, so they're easy to travel with, but they aren't as secure as a U-lock.
A sturdy, quality lock will start at about $50. Those living in low crime or rural areas may be able to get away with cheaper, flimsier lock options under $50, though.
If you have a fancy bike with lots of removable parts, spending money on a super sturdy lock is a smart idea.
If you plan on using extra locks to secure your seat and wheels, that will set you back a little more.
A. A U-lock with key access is the most secure bike lock option. First, you need a key to open it, and only you have it. Second, it's tough to cut into and, in general, thieves are lazy. They'll go for the bike with the lock that's easier to remove.
A. If you can, lock your bike up around other bikes. At a train station, there's a good chance there's plenty of intermittent foot traffic. But yes, it's true, there will be stretches of quiet. In that case, lock your bike up with two locks if you're worried, or find a fancy bike and secure your bike next to it. Your bike won't look as appealing to thieves. In general, bike thieves target expensive models or whatever is easiest to snag.
A. Good choice! Make sure to get a tight fit. That makes it tough to find a place to cut through. You can also position the key-entry down or out of the way to make it tough for a thief to pick. It'll make it harder for you to unlock, but if you're in an area where bike theft is common, it's a good preventative measure.
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