The 3 Best Folding Bike Locks in 2021

Jan Poshenko
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You haven't invested in a bike lock yet? It doesn’t matter whether you’re storing it in the garage or at work, keeping your folding bike safe is critical.

Unlike traveling by bike over long distances, you are going to be taking your bike with you on public transportation or carrying it with you. This is the best time to get the right U-lock or chain lock to protect your bike.

Here are the 3 best folding bike locks available. I’ve reviewed each one and discussed the pros and cons so that you can make an informed decision on which lock is best suited to your needs.

NameCategoryProduct
Kryptonite Kryptolok Folding Bicycle LockBest OverallKryptonite Kryptolok Folding Bicycle Lock
SIGTUNA Folding Bike LockBudget PickSIGTUNA Folding Bike Lock

1. Kryptonite Kryptolok Folding Bicycle Lock

Our rating: 8 / 10

Kryptonite Kryptolok Folding Bicycle Lock

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Pros:

  • It folds
  • Affordable
  • Works well with different types of locks, not just Kryptonite locks
  • Compact and easy to install
  • 5mm HARDENED STEEL LINKS for moderate security lockups

Cons:

  • Missing some of the high-end features found on other locks
  • Moderate security lock

This is a mid-range folding bicycle lock that allows you to carry it in a bag. It works well with different types of locks. It is not just limited to Kryptonite locks which allows it to be used with a variety of other locks.

This is the new model from the Kryptonite Kryptolok to make my list because it has added some security features and is also affordable compared to many non-folding locks on the market. The large size is suitable for E-bikes.

2. FLYDEER Universal Folding Bike Lock Steel Portable Chain Lock Heavy Duty 6 Joints Bicycle Lock Anti-Theft Bike Password Lock

Our rating: 7 / 10

FLYDEER Universal Folding Bike Lock Steel Portable Chain Lock Heavy Duty 6 Joints Bicycle Lock Anti-Theft Bike Password Lock

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Pros:

  • Smarter and safer than most other conventional locks
  • Lightweight
  • Compact
  • Flexible
  • Made with hardened alloy steel
  • Anti hydraulic clamp, anti-sawing, anti-drilling, anti-rust
  • Covered by ABS rubber material, won't scratch your bicycle
  • Can lock two bikes at the same time

Cons:

  • Instructions to set you personal combination are in Chinese
  • Lock reset is under your finger when you unlock it

This FLYDEER Universal Folding Bike Lock Steel Portable Chain Lock is a good choice for those looking for an affordable yet effective lock for their bike. It has a keyless combination lock that is easy to set and use. In addition, the password can be changed frequently and you can set a combination from 10,000 possibilities without having to worry that someone will be able to open it. The instructions are in Chinese but you can find English instructions in the Amazon Listing.

3. SIGTUNA Folding Bike Lock

Our rating: 6 / 10

SIGTUNA Folding Bike Lock

Check Price on Amazon

Pros:

  • Made from Carbon Steel
  • Strong and secure
  • Durable
  • 100% money-back guarantee
  • Paintwork-Safe Plastic Casing

Cons:

  • Some users complained that it can be easy to cut
  • The lock mechanism may not work after a while

This SIGTUNA folding bike lock is easy to mount and secure; with its tough, anti-theft hardened steel it will guarantee to protect you and your bike from theft. It is made of anti-scratch coating for better protection of the paintwork of your bike.

Frequently Asked Questions (FAQ)

What is the strongest bike lock?

Different bike locks are more secure than others, but the strongest bike lock is one that offers a good locking system. There are so many different bike locks out there, and they all have their different strengths and weaknesses.

Many of these locks are also only effective if they are used properly and correctly. For example, even the best bike chains can be cut with a professional saw, but they have the advantage over other bike locks in that they are easier to take with you when you are riding in less secure locations.
If someone wants to break your bike lock badly enough, they will, but being aware of your surroundings will improve your chances of stopping theft altogether.

Are folding locks any good?

These days, a bike is a cheap second car, a source of weekend entertainment, and one of the easiest ways to get to work. Naturally, most people want to lock their rides up when they leave them parked, leaving them vulnerable to thieves.

At the same time, a bike lock is a considerable expense that most people don't want to deal with. Rather than opting for a small cable to loop around a nearby tree, it can be worth investing in a slightly sturdier folding lock.

This type of lock is simple to use and is compact enough that it's unobtrusive in a busy urban environment. Best of all? A folding lock offers more than enough security against any of the occasional bike thieves that you're likely to encounter.

Is there a bike lock that can not be cut?

There are super-expensive locks and super-strong ones, but any lock is susceptible to a powerful enough pair of bolt cutters.

Solutions like drilling through a thick steel frame or an expensive chain and the locking mechanism can help, but those are parts you might not want to give up.

For the most part, you want heavy-duty bike locks for their deterrence of theft. When it comes to cut-and-run cyclists, it's not worth the time to try and pry apart or saw through your lock or have access to tools that'd allow that in just a couple of minutes.

What is the best U lock?

When you’re traveling, you often need to find a way to lock up your bike. There are a few different things you can do, but the best option is a U lock. These locks work by encircling the front wheel, and the seat, and the rear wheel. If all the components of the bike are locked up, you should hopefully feel secure.

U locks generally come in two designs: threaded and Smart. threaded reduces your options significantly, and only allows you to lock the bike in a U shape. That means that you can keep your bike on the inside of the lock and still have the lock attached to a surface.

Smart locks give you a few more options than threaded locks and tend to be lighter and smaller. That means that they are easy to carry if you’re traveling. They tend to be a bit more expensive, but if you’re traveling, that won’t matter too much.

Conclusion

In conclusion, if you’re going to ride a bike and want to leave it somewhere other than your own home, you will need a lock as well.

But which bike lock do you get? It depends on how important it is to you to have an incredibly secure lock.

If you value ease of use, you may want to go for a lighter lock. But if you value security over all else, you may want to go for a heavier lock. Check our options for folding bike locks in 2021 which will help you take a decision easier.

Our Recommendation

NameCategoryProduct
Kryptonite Kryptolok Folding Bicycle LockBest OverallKryptonite Kryptolok Folding Bicycle Lock
SIGTUNA Folding Bike LockBudget PickSIGTUNA Folding Bike Lock