SIGTUNA Bike U Lock – Our Review

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Quick Overview





  • Heavy-duty design will last for many years
  • Double deadbolt for extra security
  • Enhanced cylinder
  • Easy to use - even for beginners or teenagers
  • 3 keys for setting new combinations
  • 85/100 security rating - offers you complete peace of mind


  • Somewhat higher price based on quality
  • A bit heavy compared to similar products

Despite all the changes in bike designs and security features, theft still happens.

With this in mind, you will want to do everything in your power to prevent this outcome.

While the best way to prevent this type of scenario is to never leave your bike in front of a store or other building, that is almost impossible, especially if you use your bike as a mode of transportation.

For this purpose, it is essential to go ahead and find a bike lock that suits your bike and your needs.

We have done some market research and found that the SIGTUNA Bike U-Lock is among the best value models on the market.

Highlighted by an innovative design and with a fantastic lock mechanism, you can rest assured that no one will be able to get their hands on your bike!

So keep reading to find out more about this lock.


Among the different companies that manufacture bike locks, we have to agree that SIGTUNA is one of the most recognized names.

If you know a thing or two about these products, then you are aware that a couple of different types are available, including chains, D cables, and U-locks.

In our personal opinion, the design that highlights this product is the most secure one.

What you are looking at here is a 16mm heavy-duty U-lock that is accompanied by an enhanced shackle, as well as a sturdy 12mm steel chain cable.

While it does come at a somewhat higher price, it holds great value and is definitely worth your attention!

Who is This Bike Lock for?

SIGTUNA is a fantastic choice not only for those of you who enjoy riding a bike but also for enthusiasts who are going around on motorcycles, skateboards, and even electric scooters (although in most cases you can fold these in a couple of seconds).

Investing in a U-lock such as this one is especially important if you are using your bike to get yourself from point A to point B on a regular basis, thus increasing the chance of theft because you will have to leave your bike in front of a store or public building more often.

What’s Included?

What you are looking at when talking about this product is an innovative design.

Along with the U-lock itself, as well as the enhanced stainless steel cable, you get three keys to ensure optimal security and convenience.

Not only this, but you will be getting a detailed instruction manual that will allow you to figure out the different lock combinations in order to keep your bike theft-proof!

Overview of Features

SIGTUNA is a company that is well-known for developing bike locks that offer fantastic security while optimizing convenience.

The main highlight of this product is a 16mm stainless-steel ridge set at the U-lock that goes a long way when it comes to providing optimal security.

It has a rating of 85/100.

This is much more than what you would find with the common cable and chain locks, and it justifies the somewhat higher price that the SIGTUNA product is set at.

Not only are you looking at fantastic resistance and leverage but also extended holding power, as this U-lock should be able to withstand any power tool that goes against it, including cable cutters, chainsaws, etc.

It is highlighted by two innovative locking mechanisms, including a double deadbolt and a high-security disk cylinder. These work together to prevent any chance of theft.

By investing in a product such as this SIGTUNA lock, you are making a long-term investment that should keep thieves away from your possessions.

Most importantly, it is highlighted by a heavy-duty design and details that contribute to the overall convenience.

Thus, the protective coating is something that will prevent scratches, as well as eliminate the chance of the lock ruining the bike’s paint.

Not only that, but the highlighted bike lock mount is easy to install and will allow you to carry it around wherever you go.

Yes, this product is a bit heavier, but given the security that it offers, that shouldn’t be an issue.

In the end, you should know that it comes with three keys that you can use for setting a new combination and unlocking the U-lock.

Overall, this is a convenient and reliable product that will allow you to stay worry-free when it comes to leaving your bike while you go out to get a couple of groceries!

How to Use SIGTUNA Bike U Lock

This product is highlighted by two anti-theft features that make it a convenient choice.

Apart from the double deadbolt, you are also looking at an enhanced cylinder that is simple to manipulate and that ensures optimal protection.

The U-lock is made according to the latest industry standards and offers a series of lock combinations that you will be able to choose from in order to enjoy optimal security!


Dinoka Bike U-Lock

If the aforementioned product is a tad too pricey for you, then we have a fantastic substitute.

Highlighted by a heavy-duty U-lock, as well as a loop cable, it should provide increased protection and fair durability given its silica-coated and zinc alloy core design.

Yes, it is nowhere near as powerful and long-lasting as the SIGTUNA, but given the price difference, it is definitely a choice to consider.


For all of you looking to enjoy optimal security features when it comes to bikes, the SIGTUNA Bike U-Lock is a product that you shouldn’t miss out on.

Made according to the latest industry standards in terms of structure and ease of use, it is a great choice both for professional and hobbyist bikers!

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