7 Best Bike Lock Reviews to never Lose your Bike (2021)

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A few months ago we got ourselves a new high-end mountain bike to record awesome mountain trail videos for you guys. Being super excited as we are we couldn’t wait to get started, only to be hugely disappointed… our bikes got stolen from a bike rack which we locked them too! We had decent locks and luckily insurance, but we vouched to never let this happen again.

The secret is choosing a lock that is easy-to-use and secure enough to protect all types of bikes. Whether your priority is the best bike protection or something small and affordable, we made sure to find the best selection of bikes locks for your review! After getting one of these, stolen bikes are something of the past!

Best Bike Locks Compared

We ordered the 7 best bikes locks from Amazon and got started with cutting, chopping, sawing and breaking them open, to find the best bike lock for you to use.

Title
OUR PICK
KRYPTONITE Heavy Duty Bicycle U-Lock with 4ft Flex Bike Cable
SIGTUNA 16mm Heavy Duty U-Lock 1200mm
KRYPTONITE Chain and New York Disc 14mm x 60" Bike Lock
AMAZER Heavy Duty Combination 12mm Bike U-Lock
TITANKER 3.3ft Heavy Duty Anti-Theft 8mm Bike Lock Chain
IGTUNA Folding Heavy Duty Anti Pick Bike Lock
Preview
Price
$77.90
$34.95
$132.99
$16.99
$13.90
$32.35
OUR PICK
Title
KRYPTONITE Heavy Duty Bicycle U-Lock with 4ft Flex Bike Cable
Preview
Price
$77.90
Get Yours
Title
SIGTUNA 16mm Heavy Duty U-Lock 1200mm
Preview
Price
$34.95
Get Yours
Title
KRYPTONITE Chain and New York Disc 14mm x 60" Bike Lock
Preview
Price
$132.99
Get Yours
Title
AMAZER Heavy Duty Combination 12mm Bike U-Lock
Preview
Price
$16.99
Get Yours
Title
TITANKER 3.3ft Heavy Duty Anti-Theft 8mm Bike Lock Chain
Preview
Price
$13.90
Get Yours
Title
IGTUNA Folding Heavy Duty Anti Pick Bike Lock
Preview
Price
$32.35
Get Yours

In-depth Reviews of the Best Bike Locks

We ordered and tested over 20 different bike locks, below we selected our favorite ones keeping in mind everybody’s budget and needs so you don’t have to do the dirty work.

1) Kryptonite Heavy Duty Bicycle U-Lock

Kryptonite KryptoLok Series 2 Standard Heavy Duty Bicycle U Lock with...
  • Replaced with new and improved design in 2017 - check out our New U lock, it will send any bike thief running!
  • 13mm hardened MAX-PERFORMANCE STEEL SHACKLE resists cutting and leverage attacks
  • Includes 4’ KRYPTOFLEX DOUBLE LOOP CABLE for securing front wheel or accessories

2) Sigtuna 16mm Heavy Duty U-Lock

SIGTUNA Bike locks - 16mm Heavy Duty U Lock with U-Lock Shackle and...
  • PROTECT YOUR RIDE ✔️ This awarded SIGTUNA Bike U-lock is made of 16MM High-Performance Steel for Extensive Holding Power and Resistance against Cut and Leverage attacks with a wapping 85/100...
  • CHOOSE POWER ✔️ This Bike Lock Combination has a High-Security Disc-Style Cylinder and Double Deadbolt locking mechanism, very effective and certified against Leverage Attacks. With SIGTUNA you...
  • EASY-TO-USE ✔️ This model SIGTUNA Bike Lock Combination comes with a Easy-to-Install Bike Lock Mount, a Protective Coating to protect your bikes paint and not 2, but 3 Laser-Cut Abloy Keys. With...

3) Kryptonite Chain and Disc 14mm Bike Lock

Sale
Kryptonite New York FAHGETTABOUDIT 1415 14mm Chain & New York Lock...
  • 14mm six-sided chain links made of 3t HARDENED MANGANESE STEEL for ultimate strength
  • Durable, protective nylon cover with hook-n-loop fasteners to hold in place
  • Includes maximum security New York Disc Lock with 15mm MAX-PERFORMANCE STEEL SHACKLE

4) Amazer Combination 12mm Bike U-Lock

Amazer U Lock for Bicycle, U Lock Combination Heavy Duty Bike Lock...
  • Why Amazer U lock can keep your bike safe? Amazer U lock is made of 12mm hardened performance steel shackle and covered by a 3.85mm PVC coating(Total lock's thickness is almost 16mm). So it can resist...
  • Keyless & easy to set combination: Choose Amazer U lock, no more lost keys! 4-digit set your own combination convenience allows for thousands of possible combinations. Prevent thieves use universal...
  • Dust cover: The combination is covered by a dust cover to protects and extends cylinder life.

5) Titanker 3.3ft Heavy Duty 8mm Bike Lock

Titanker Bike Chain Lock, 3.3-Feet Security Anti-Theft Bike Lock Chain...
  • SECURE & PORTABLE: 【❤️The key can only be pulled out when locked, which prevents the key from being lost ❤️】Titanker bike lock comes with 2 keys. You can take one of the keys to use in...
  • HEAVY DUTY HIGH QUALITY: With 8mm thicker security heavy-duty chain links, our bike lock is made of heavy-duty steel known for it cut-resistance. ★★★ Lubricate the lock hole and keyhole...
  • PROTECTIVE CLOTH SLEEVE & DUST COVER: Chain is enclosed in protective cloth sleeve, which effectively protects the chain from rusting and scratching

6) Igtuna Folding Heavy Duty Bike Lock

Folding Bike Lock - Hardened Steel 8mm Fold-Up Heavy Duty Bike Lock...
  • PROTECT WHAT YOU VALUE ✔ This High Performance and Certified SIGTUNA Bike Folding Lock is made of special hardened ABS Steel bars and rivets and provides Maximum Security for your bike in all risk...
  • STRONG AND SECURE ✔ This SIGTUNA Folded Bike Lock is made 5mm Steel Bars, with specially designed rivets for extensive holding power against leverage attacks!
  • DURABLE and EASY TO USE ✔ This Bike Fold Lock comes with soft-touch Coating on the bars and matching silicone Lock Body Cover to protect your bike's paint job and an a easy-to-mount Mounting...

Types of Bike Locks

Before we proceed with the bike lock reviews, let us guide you with the various types of bike locks available in the market.

U-Locks and D-Locks

The most commonly used bike lock is the U-locks or D-locks. This type of lock already exists since the 1970s and is an atypically large horseshoe-shaped padlock. In general, U-locks are available in different sizes so whether you own a road bike or an e-bike is not an issue.

If you look closely, with its tough design, U-locks are a nifty visual deterrent thieves. Besides that, with its sturdy locking mechanism, it can withstand bolt cutters, chisels, hammers, etc. The target is to lessen the area in which a robber can slip in a lever or a crowbar to dismantle it. Surprisingly, with its robust design, it is still lighter compared to a number of chain locks. Thus, if you are searching for a portable lock to use on your bike daily on the street the best choice for you is a U-lock.

In spite of these benefits, of course, there are likewise drawbacks to this product. For one, the regular-sized U-lock will ordinarily suit street signs and common bike racks. Unfortunately, this can’t hold true with lamp posts or other various broad street equipment. Furthermore, while this lock is portable sometimes it gets muddy and dirty which means it can be uncomfortable to place in your bag.

Chain Bike Locks

Meanwhile, a chain bicycle lock includes a chain link that can withstand chisels or hacksaws. You will discover a whole lot of links and chains available in a variety of weight and size. Similarly, there are links protected with a plastic sleeve to shield both your bike and chain. This type of lock is incredibly tough and you can simply wrap it around any sort of bicycle. You can even use it to secure one or two bikes. Moreover, since the links are flexible and movable it will be tricky for a thief to get rid of it with a power cutting tool.

On the other hand, here are a few downsides of chain locks. While this lock is movable, it can be thick and heavy. Thus, it will be difficult to carry and will surely drag you down while you are biking. Likewise, there are low-quality chain locks that thieves can destroy with bolt croppers.

Indeed, it is best to determine the quality of the product before purchasing it. Additionally, if you opt for a chain lock without a plastic sleeve this can result in the links damaging your bicycle’s paint.

Lastly, when you do invest in chain locks see to it that you also purchase a tough padlock. While it is possible thieves can have a challenging time cutting through a robust chain, they can swiftly destroy a flimsy padlock. Having said that, with its bulky size and weight, this lock is ideal for home or stationary use.

Folding Bicycle Locks

Another popular choice when it comes to securing your bike is folding bicycle locks. This lock is composed of a string of metal plates linked by rivets. The rivets are the ones that permit the plates to adjust so you can properly shape it to where you want to lock your bike or just fold it for storing.

What are the advantages of choosing a folding bike lock over the other locks? Well, for one this type of bike lock is rather a little lighter than the other U-locks which are providing the same internal space and security.

Identically, folding bike locks are lighter than the bulky chain locks. And as we have mentioned earlier, with this lock being adjustable and flexible you can secure your bicycle in areas that are not accessible with a U-lock. In addition to this, what is good about folding locks is that you can tuck it in a remarkably compact bundle that is convenient to carry on your bicycle.

Normally, it comes with a holster you can attach or screw on your bike frame. In case you opt to place your folding lock inside your bag, its slim shape will only take up a small space compared to a U-lock.

Nonetheless, while there are benefits or advantages to products, there are also known disadvantages. For example, with the complex construction of this lock, it will be a bit hard to extend, unfold, and then position it on the bicycle wherever you are locking it. Also, since folding locks are relatively new in the market, you have limited options because there are only a manufacturers offering it.

Cable Locks

In this case, if you are looking for an extra lock you can use in combination with your primary bike lock then cable locks are a great choice. You can choose from cable locks with keys, combination locks, or padlocks.

Similar to a chain lock, a cable lock is likewise flexible and you can use it to secure your bicycle to various places. This type of lock is also lightweight and you can carry it around with less hassle.

Then again, since these merely are cables the level of security is lesser compared to thick chains and links. A bolt cutter can basically cut through this lock. Hence, it is suitable for low risk or .

Bike Lock Buying Guide

Any skilled thief with just the right tools can defeat any bike lock in 5 minutes, but that doesn’t mean all bike locks are created equal! Below some of the most important points to consider when getting a new bike lock.

Which type of bike lock is the most secure?

Granted that there are myriad factors to consider when deciding on the type of bike lock suited for you, however, one can never go wrong in choosing a U-lock, padlock, and a chain. It is important to realize that there is no such thing as an indestructible bike lock.

Again, with the right tool, a skilled thief can steal your bicycle if he really wants to. Your lock just helps you buy time before a thief can get away with it. Remember, the stronger the bike lock, the longer the time you will have.

Also, with thieves or organized gangs having access to bolt cutters it is best that you determine the right lock size and thickness Ideal for your bicycle.

What size bike lock do I need?

In selecting the ideal U-lock, you need to decide the right size for your bike. When we say size we refer to space or area within the lock. And the smaller the U-lock you choose, there’s a tinnier chance a thief can slip in a tool to destroy your lock.

With that said, make sure you opt for a U-lock or a chain that will firmly suit your wheel, frame, and the area where you will secure your bicycle. Take note though, in choosing a small lock it will reduce the place you can secure your bikes such as broad signposts, wide lamp posts, or railings. Thus, it is best you smartly plan where you will secure your bicycle.

How thick should my bike lock be?

As mentioned earlier, bolt cutters are a popular tool among thieves. For this reason, it is advisable that you opt for thicker locks. A U-lock or chain with diameters less than 13 mm can be dismantled by thieves with medium-sized bolt cutters. While huge bolt cutters can cut through locks that fall between diameters of 13 to 15 mm. Now, if you have locks that are at 16 mm thick, then those are tough to destroy with a manual bolt cutter.

Generally speaking, when thieves are determined to steal your precious bicycle, they will take all steps to eliminate your bike lock. Your role then as the owner is to ensure that thieves will have a challenging time breaking your locks.

Keep in mind, locks can’t secure everything, hence, if it can’t be locked then bring it with you. In like manner, remember to choose a place or an object to secure your bike that is safe and sturdy, otherwise, thieves can steal both your bicycle and lock. Under those circumstances, it is preferable to practice securing your bicycle with two different types of locks.

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