Best Folding Bike Locks of 2025, Tested and Reviewed

With the growing number of cyclists on the road and bike thefts becoming a common issue in cities worldwide, ensuring your bike stays safe requires more than just a flimsy chain or cable lock. That’s where folding bike locks come into play. In 2025, the best folding bike locks are not only stronger but also smarter, designed to withstand sophisticated theft methods.

With countless options on the market, we’ve taken the guesswork out by testing top-rated folding locks in controlled lab environments. From durability to portability, every lock on this list has been evaluated thoroughly for your peace of mind. From hardened steel to titanium, each lock has been carefully selected to meet the needs of modern cyclists.

Let’s dive into the best folding bike locks that will keep your ride safe this year.

Product	Image	Material	Weight	Length	Security
ABUS Bordo Granit X-Plus 6500		Hardened steel bars	3.48 lbs	33.5 inches	Maximum
Kryptonite Kryptolok 685		5mm hardened steel bars	2.2 lbs	27 inches	Moderate
FoldyLock Compact Bike Lock		5mm hardened steel	2.2 lbs	33.5 inches	Moderate
KOHLBURG Security Folding Lock		Hardened special alloy steel	2.2 lbs (3 lbs with bracket)	35 inches	Highest
Seatylock Folding Bike Lock		3mm hardened steel	2.6 lbs	Varies (Seat-integrated)	Moderate

1. ABUS Bordo Granit X-Plus 6500 – Best for Maximum Security

The ABUS Bordo Granit X-Plus 6500 is made for cyclists who prioritize security above all else. With its hardened steel bars and patented link construction, this folding lock delivers superior resistance to theft attempts, including cutting, drilling, and prying. The lock withstood bolt cutter attacks, hacksaws, and even extreme weather, like freezing spray. The unique X-Plus cylinder adds an extra layer of security by protecting against lock-picking and other advanced tampering techniques.

Measuring 33.5 inches in length when unfolded, it provides ample flexibility to secure your bike to various fixed objects. Despite its robust build, the lock remains lightweight and compact, folding neatly into its included frame-mounted bracket. This makes it a practical choice for daily commuters who value portability alongside top-notch protection.

What impressed us most during testing was its ability to retain performance even after prolonged exposure to tough conditions. The ABUS Bordo Granit X-Plus 6500 maintained its smooth operation, thanks to its high-quality materials and precision engineering. Its endurance and reliability make it a standout option for those in high-risk areas or for those leaving their bikes unattended for long periods.

2. Kryptonite Kryptolok 685 Folding Lock – Best Value for Money

The Kryptonite Kryptolok 685 Folding Lock is the perfect blend of affordability and security, making it an excellent choice for budget-conscious cyclists. Built with 5mm hardened steel bars, this lock offers solid resistance to common theft tools, including bolt cutters and hammers. It performed admirably against medium-strength attacks.

Its lightweight and compact design, weighing just 2.2 lbs, makes it one of the easiest locks to carry around, and its folding mechanism ensures it takes up minimal space when stored. The included mounting bracket attaches seamlessly to your bike frame. It is ideal for urban commuters or recreational cyclists looking for a dependable yet affordable folding lock.

In terms of usability, the lock features a smooth key mechanism that operates without jamming—a common issue in lower-priced locks. Its rubber-coated steel bars protect your bike’s finish from scratches, ensuring both security and aesthetics. Although it doesn’t have the extreme toughness of high-end models, the Kryptolok 685 provides an excellent balance between cost, portability, and performance.

3. FoldyLock Compact Bike Lock – Best for Portability

The FoldyLock Compact redefines convenience in bike security, offering cyclists an ultra-portable folding lock without compromising on strength. Its 5mm hardened steel delivers reliable resistance against common theft tools such as cutters and crowbars. Its rivet-reinforced joints add extra durability, ensuring it holds up under pressure during attempted break-ins.

During our lab tests, the FoldyLock bike lock ranked 3rd position for its seamless balance of strength and portability. With just 2.2 lbs and folding down to 7.5 inches, this lock easily fits into your backpack or mounts onto your bike frame using the included compact bracket. Its ergonomic key system makes locking and unlocking a breeze, even in low-light conditions.

The weatherproof coating protects it from rust and corrosion. Whether you’re riding through rain, snow, or heat, the FoldyLock Compact maintains its functionality and durability. It is perfect for cyclists who prioritize portability and want a secure option for low- to moderate-risk areas, particularly suited for short stops or urban rides.

However, its relatively short length might be a limitation for those who frequently secure their bikes to larger objects.

4. KOHLBURG Security Folding Lock – with Keys & Bracket

The KOHLBURG Security Lock is designed for cyclists who prioritize security without sacrificing portability. This lock delivers the highest security level for foldable bike locks, making it ideal for high-quality bicycles and e-bikes. Its hardened special alloy steel construction ensures resistance against common tools like bolt cutters and hacksaws. 

One of the appreciable features is the absence of rattling. The precise manufacturing and flexible links ensure a quiet and smooth ride, a problem we often encounter with cheap folding locks. At a convenient length of 35″, it’s long enough to secure your bike to a variety of fixed objects, whether you’re locking up in a bike rack or at a public spot. The high-security multi-disc cylinder makes it difficult for thieves to pick the lock.

Perfect for everything from electric bikes and mountain bikes to scooters and trailers, the KOHLBURG Security Folding Lock is a versatile and reliable solution for anyone looking to protect their bike. We tested this lock on various bike frames and found it to be a perfect fit, especially for narrow bike frames, thanks to its bracket that opens to the front for easy removal.

5. Seatylock Folding Bike Lock – Best for Design

The Seatylock Folding Bike Lock is a beautifully designed, functional lock that doesn’t compromise security. This lock provides moderate protection against theft, especially in areas with lower risks. Its unique design allows it to be stored as a bike seat, transforming your seat into the lock itself. The Seatylock proved to be a solid performer, providing easy access while offering decent protection for low- to mid-level security needs.

Its innovative design ensures you don’t need an additional mounting bracket, and the compact nature of the lock makes it simple to carry around or store. While it may not offer the same extreme level of security as some other folding locks, it excels in everyday use for urban cyclists who need a quick and easy locking solution.

What impressed us most about its clever integration with the bike’s design! It’s an excellent choice for cyclists looking to minimize the number of accessories they carry. Its unique design also makes it an attractive alternative for those who want a lock that blends in with the bike’s aesthetics.

6. FoldyLock Classic 95 – 37.4″ Heavy Duty Anti-Theft Lock

The FoldyLock Classic 95 Folding Bike Lock offers a perfect balance of portability and high-level security, designed for cyclists who want top-tier protection without the added bulk. With a 37.4″ circumference, this lock provides ample length to secure your bike to a variety of objects. We tested this lock in various environments, and it stood up to our expectations for both everyday use and urban parking situations.

Its heavy-duty anti-theft design features ultra-strong rivets and a robust locking mechanism, making it resistant to bolt cutters and saws. Whether you’re parking in a busy city or in a high-theft area, this folding lock offers peace of mind. It’s Sold Secure Silver certification, which guarantees a high standard of security. The Master keys and frame mount offer ease of use and added convenience.

The lock’s patented design incorporates hardened steel components. We appreciate the weatherproof and waterproof properties, which ensure its longevity and reliability, regardless of the weather. The lock is also engineered to cut the rattle, so you won’t have to deal with noisy, distracting locks while cycling, even on rough terrain. The secure mounting bracket allows you to store the lock easily on your bike frame when not in use.

7. OKG Folding Bike Lock – Versatile with Mount Bracket Kit

The OKG Folding Bike Lock offers a highly reliable solution for protecting your e-bike, scooter, or moped from theft. This lock is a solid, yet manageable option. The 37” length (95 cm) ensures to secure your bike to various fixed objects. The hardened steel construction provides resistance against the most common theft methods, including bolt cutters, saws, and portable battery-powered angle grinders. It performed excellently in urban environments, with no signs of wear or compromise even after extensive use.

Its patented OK GUARD+ anti-theft system combines a 6-pin drill-proof stainless steel cylinder, anti-tamper rivets, and a robust 50Cr steel lock plate. These features, along with the lock’s 8.5mm thickness, make it a formidable deterrent to thieves. The design minimizes noise and saves space compared to traditional U-locks or chain locks.

We also found the mounting bracket system to be versatile and easy to install, allowing for attachment to bike frames with circumferences ranging from 3″ to 7″ or diameters between 1″ to 2.3″. With a 3-year warranty and a practical design, this lock provides peace of mind for all your cycling adventures.

How to Choose the Best Folding Bike Locks of 2025?

In this complete buying guide, we break down the factors you need to consider selecting the best folding bike lock of 2025.

Security Level

The primary function of any bike lock is to protect your bike from theft. To choose the best folding bike lock, it’s important to consider the security level. Different locks are made from varying materials that offer different levels of protection.

• Steel Locks: Hardened steel is common in most folding bike locks, offering high resistance to cutting and sawing. Locks with a steel or alloy steel construction ‌provide better security.
• Titanium Locks: Titanium locks, while lightweight, can also offer a high level of strength. However, these are more expensive and may not be as secure as high-quality steel locks in high-risk areas.
• Lock Mechanism: The locking mechanism plays a significant role in how secure the lock is. Look for locks with anti-pick and anti-bump mechanisms.
• Security Rating: Many locks come with certifications, such as Sold Secure or ART ratings, that can help determine their security level. Gold or Silver-rated locks offer better protection.

Portability and Weight

The advantage of folding locks is their portability. They fold down to a compact size, making them easier to carry than traditional U-locks or chain locks. Although heavier locks offer better security, they can be cumbersome. Choose a folding lock that provides adequate protection while still being lightweight enough for you to carry comfortably. Some folding locks come with mounting brackets that allow you to attach the lock to your bike frame. This makes it easy to store the lock while riding.

Ease of Use

A folding lock should be simple to use and lock/unlock with ease. Look for locks that have user-friendly key systems, such as ergonomic key cylinders or combination mechanisms.

• Folding Mechanism: Ensure the lock folds and unfolds smoothly, as some designs may be more difficult to operate than others.
• Locking Time: Choose a lock that allows you to secure your bike quickly. This is especially important for urban commuters who need to lock and unlock their bike frequently.

Length and Coverage

The length of the lock is essential for securing your bike. Too short locks don’t give you enough coverage, while a lock that’s too long may be difficult to handle. A lock between 30 to 35 inches is usually a good option, offering enough length to secure your frame to a sturdy object. Look for locks that are flexible enough to fit around different objects, like bike racks, posts, or poles.

Price and Value

Price is a key factor when choosing the right folding bike lock. Higher-security locks come with a higher price tag, but that doesn’t mean you need to overspend. If you’re on a budget, you can still find affordable locks that offer basic security for low-theft areas. If you’re parking your bike in high-risk locations or own a high-value bike, investing in a high-security premium folding lock might be worth it.

Durability and Weather Resistance

Your lock will be exposed to uncertain weather, so durability and weather resistance are important factors to consider. Look for locks with corrosion-resistant coatings, such as those made from treated steel or those with plastic or rubber coverings. Check the lock’s material and construction to ensure it can withstand wear and tear over time, even in harsh weather.

Locking Style

Folding bike locks come in two types of locking mechanisms: key-operated and combination locks. The locking style you choose should suit your preferences.

• Key Locks: These are the most common and provide a higher level of security. However, you may need to carry a spare key or make sure to keep your key safe.
• Combination Locks: These locks use a combination code to secure your bike, eliminating the need for a key. However, they can be more vulnerable to attacks.

FAQs:

Are folding bike locks more secure than chain locks?

Folding bike locks can offer comparable security to chain locks, depending on the materials used and the lock’s design. However, folding locks are more portable, while chain locks are often more flexible and can fit around a wider variety of objects. The key difference lies in the specific lock’s build quality and security features.

Are folding bike locks lighter than U-locks?

In general, folding bike locks are lighter than U-locks, but this depends on the specific brand and model. Folding locks usually provide a balance between portability and security, while U-locks are often heavier and bulkier, but provide slightly higher security in some cases.

Can folding bike locks be easily cut or broken?

Although no lock is 100% invulnerable, high-quality folding bike locks made from hardened steel or similar materials are generally resistant to cutting and sawing. Locks with additional anti-pick features are more secure against tampering. Choosing a lock with a high security rating and investing in a top-tier model can significantly reduce the risk of theft.

How do I store a folding bike lock when not in use?

Most folding bike locks come with a mounting bracket that attaches to your bike frame, allowing you to carry the lock while you ride. This eliminates the need to store the lock in a bag or backpack. If your lock does not include a mounting option, consider using a lock holder or carrying it in a pouch that attaches to your bike.

Can I use a folding bike lock for securing other items?

Although folding bike locks are designed specifically for bicycles, their flexible and portable design makes them suitable for securing other valuables, such as luggage, backpacks, or small outdoor equipment. However, it’s important to ensure that the lock provides enough security for the item you intend to protect.

Do I need a spare key for my folding bike lock?

Yes, it’s a good idea to have a spare key for your folding bike lock in case you lose or misplace the original key. Some models also offer combination locking mechanisms, but a key-operated lock offers better security. Check if the lock includes a spare key or offers the option to purchase one.

Conclusion

Choosing the best folding bike lock of 2025 comes down to balancing security, portability, and ease of use. As bike thefts continue to rise in many urban areas, investing in a high-quality folding bike lock is essential for protecting your bike. Top brands like ABUS, Kryptonite, and TiGr offer a range of folding bike locks that combine robust security features with portability. With this guide in your hand, you can confidently choose the perfect folding bike lock to keep your bike secure in 2025 and beyond.

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