Bike theft happens more often than you think - even to bikes that are locked. The cause?
Incorrect use of bike locks or locks that are poor in quality. Unfortunately, bike theft is still a
common problem, especially in busy cities. Fortunately, with the right bike lock, you can
significantly reduce the risk of your bike being stolen. In this blog, you'll discover which bike locks provide solid protection, what types of bike locks are available, which lock you need for insurance purposes, and how to choose the best one for your type of bike.
The different types of bike locks
Not all bike locks are created equal. Depending on where you use your bike and the kind of bike you own, different locks will be more or less suitable. Here’s a breakdown of the main types:
Frame lock
A frame lock (also called a ring lock) is the most well-known type. This lock is attached to the frame and immobilises the rear wheel when in use. On its own, it’s not fully secure, as the bike can still be wheeled away on the front tyre. It’s therefore not recommended for use in busy cities. However, combined with a second chain lock, it can be effective especially for short stops or as an additional lock.
Chain lock
A chain lock offers a high level of security and is very versatile. It allows you to secure your bike to a fixed object, such as a bike rack, lamp post or another bike. The thicker the chain, the harder it is to cut through. Although this also makes it heavier to carry around.
Folding lock
Folding locks combine strength with a compact design. They’re lighter than chain locks and easy to store. Thanks to their flexible structure, they’re convenient to use while still offering solid protection.
Cable lock
Cable locks are lightweight and easy to carry, but they offer limited security. They’re best used as a secondary lock. For example, to secure your bike to another or to a post.
What to consider when choosing a bike lock
When choosing a bike lock, it’s all about safety, ease of use, and portability. Keep these factors in mind:
- Level of security: Look for a lock with an ART certification. High-quality locks will usually carry this label.
- Ease of use: How simple is the lock to operate? If it’s quick and easy to use, you’re more likely to use it consistently. Awkward locks are often neglected, increasing the risk of theft.
- Weight and size: A heavy chain lock offers great protection but can be impractical to carry. Think about what size and weight work best for your lifestyle.
- Where you park: Do you park in a busy city or a supervised bike shed? The location will help determine which lock is most suitable.
Extra tip: Combine different types of locks for maximum security. Thieves are more likely to leave a bike alone if it’s protected by more than one lock.
Which lock do I need for my insurance?
Do you have an electric bike or an expensive city bike? Then taking out insurance is often a smart choice. But beware: insurers often have specific requirements for the type of lock you must use. Here's what you need to know:
The main requirement is that the lock must be ART-approved. Typically, this means:
- ART 2 is the minimum standard for regular e-bikes.
- ART 3 is advised or required for high-end e-bikes and speed pedelecs.
- Locks without ART approval are usually not accepted. If your bike is stolen, you might not be reimbursed.
So, don’t just focus on safety - make sure your lock also meets insurance requirements. Always check your policy's terms and conditions and keep your proof of purchase. In case of a claim, you’ll often need to show what lock you were using.
Recommended bike locks from our range
At CUBE, we offer high-quality bike locks you can rely on. In our selection, you’ll find the following models that score highly for both safety and user-friendliness:
This chain lock carries the ART 2 certification and offers excellent protection for e-bikes and city bikes. With its strong build and tear-resistant cover, your bike is well protected.

Acid Folding Lock Rigid 100 Pure ART1
A solid folding lock with ART 1 approval. It features a highly secure cylinder lock, is wear-resistant, and made of high-grade stainless steel. Ideal for everyday protection, wherever your journey takes you.

A compact yet sturdy lock. Perfect for cyclists on the go who want an extra lock without compromising on security. Easy to store and simple to use.

Proper bike security starts with the right lock
A quality bike lock isn’t a luxury, it’s essential for keeping your bike safe. Whether you ride a city bike, an e-bike, or a sporty mountain bike: the right lock reduces your risk of theft. Pay attention to certifications, and wherever possible, use more than one lock. That way, you can park your bike with confidence.