Top Safety Locks for Your Bike

The Titanker cable bike lock is made of braided steel and coated with scratch-resistant material that is smooth to the touch.

The simple, four-digit combination lock lets you program up to 10,000 different passcodes to keep your bike secure. We like that you don't need to worry about carrying a key.

But users have reported weak construction on the lock's mounting bracket.

The Xtreme Bright Illumilock touts itself as the best bike lock in this category.

With military-grade steel and a pick/drill-proof locking mechanism, it’s a hard lock to crack. Plus, you can enjoy the added bonus of a built-in LED light so you can see your combination if it’s dark outside.

Be patient when unlocking, though. Users report that the tumbler is pretty sticky and doesn't roll smoothly.

Kryptonite is a well known brand in the world of bike theft prevention. The company makes high-quality locks in a variety of styles.

This particular model uses a hardened deadbolt attached to 3T manganese steel chain links to stand up to tampering. The attached nylon case protects the chain from weather and scratches, and comes in black, grey, red, or purple.

You will need to carry a key for this lock, as there's no combination entry available.

Kryptonite is a well known brand in the world of bike theft prevention. The company makes high-quality locks in a variety of styles.

This particular model uses a hardened deadbolt attached to 3T manganese steel chain links to stand up to tampering. The attached nylon case protects the chain from weather and scratches, and comes in black, grey, red, or purple.

You will need to carry a key for this lock, as there's no combination entry available.

Mongoose has been making reliable bike locks for decades. This u-lock is especially designed to protect larger bike frames without a struggle.

The included bike mount makes it easy to keep your lock with you, and the steel construction tells bike thieves that an attempted swipe isn't worth their time.

But this lock depends on keys, so you need to keep track of them. And some reviewers think the low price reflects lower quality all around, leading to rust issues over time.

OnGuard’s U-lock has all the bells and whistles as the others we looked at, but it has a bonus too—a longer “U” shape to make locking your bike up easier.

The Bulldog is a little pricier, but we think the strong steel construction and double-barrel lock make it worth a few extra dollars.

This lock requires keys, and a cable to lash it securely to poles or a tree isn't included.

These customizable bike seat locks are meant for saddles with vertical attachment bolts. Once installed, it’ll prevent someone from taking your seat off of your bike.

For around $55, (depending if you want a key or not) you won't have to worry about replacing a stolen bike seat. If you choose a key, you'll add $10 to your overall cost.

That's a little pricey, but you get extra bike security—and the Pinhead is guaranteed to stand up to hammers, picks, and other tools.

If you have horizontal bolts, this Pinhead saddle lock is for you. Once installed, it’ll be a permanent solution to bike seat theft.

And if you ever want to take your bike seat off, you’ll just need to use the key to do so.

You can pick up this Pinhead bike seat lock for about $10 less than the vertical attachment lock we reviewed. It also comes with a lifetime warranty.

This one-size-fits-all lock works with all seatposts—making it an easy choice if you’re not sure about your bike’s specifications.

It stands tough against picking, hammering, and other tampering to keep your bike seat in place. Best of all, once it's installed, it's there forever. You don't have to worry about carrying around keys or fidgeting with it every time you ride.

We already like Pinhead's bike seat locks, and these skewers add the same anti-theft protection to your bike's wheels.

If you have quick release wheels, a thief will only need to flip a switch to walk away with an expensive element of your bike—rendering it useless. These skewers make that an impossible feat.

We like the tough construction that holds up to both weather and tampering. Because these skewers stay in place until you remove them, make sure you have an easy way to keep track of the key.

These skewers are undoubtedly a cheaper alternative to others. They operate like regular wheel locks and are meant to be installed permanently.

But sometimes you get what you pay for. Several users complain that the Sunlite skewers don't stand up to weather over the long term. Another concern is that some were able pry them off with pliers, so these are best for trips when you won't park your bike for hours.

Plus, you only get one key, so it's crucial that you don't lose it.

Made of stainless steel, these skewers are designed to outlast weather and tampering. They fall in the middle of the other two brands in price, and can be purchased for relatively low cost.

These wheel locks are designed to be rust-resistant and come with a lifetime warranty. They're also pretty lightweight, so they won't slow you down.

But, like many other wheel locks, they only come with one key, so keep it close.