Best Bike Chain Locks of 2025

Jason Kiser Avatar
Jason Kiser
Last Updated: Jan 14, 2025

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Bike chain locks are an essential accessory for any cyclist who wants to keep their bike safe and secure. These locks are designed to be strong and durable, with thick chains that are difficult to cut or break. They come in a variety of lengths and sizes to accommodate different types of bikes and locking situations. Many bike chain locks also come with a weather-resistant coating to protect against rust and corrosion. Whether you're commuting to work, running errands around town, or going for a leisurely ride, a bike chain lock is a must-have to keep your bike safe and secure.

At a Glance: Our Top Picks

Sportneer Bicycle Chain Lock Cover #TOP 1
Sportneer Bicycle Chain Lock
ftb score rating icon 9.9
Kryptonite Keeper 712 Integrated Chain Lock Cover #TOP 2
Kryptonite Keeper 712 Integrated Chain Lock
ftb score rating icon 9.8
Kryptonite Keeper 785 Bike Lock Chain Cover #TOP 3
Kryptonite Keeper 785 Bike Lock Chain
ftb score rating icon 9.6

Top 10 Bike Chain Locks

#TOP 1

Sportneer Bicycle Chain Lock

SP-Bikelock
Black
Sportneer Bicycle Chain Lock Cover
Sportneer Bike Chain Lock Heavy Duty, Bicycle Lock with 5 Digit Combination Heavy Duty Anti Theft Keyless Security Bike Locks for Bicycle, Electric Bike, Scooter, Motorcycle, Door, Gate and Fence

The Sportneer Bicycle Chain Lock is a 5-digit resettable combination anti-theft bike lock made from extra thick manganese steel for cut resistance and protective zinc-plated coating. It is 3.2 feet long, ideal for bicycles, bike, ladders, lawnmowers, gates, fences, tool boxes, bbq, sport equipments and more. It is keyless secure lock mechanism with up to 100,000 possible codes, making it nearly impossible to crack. It is also waterproof and dustproof with a flexible cloth sleeve which covers the chains to protect it from being scratched and sawed.

What We Like
Quick delivery
Easy to use
Durable construction
Stylish design
Multiple combination options
What We Don't Like
Thick chain may surprise some
Learning curve for five-digit code
#TOP 2

Kryptonite Keeper 712 Integrated Chain Lock

001706
Black
Kryptonite Keeper 712 Integrated Chain Lock Cover
Kryptonite Keeper 712 Bike Chain Lock, 4 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence,Black

The Kryptonite Keeper 712 Integrated Chain Lock is a high-security bike lock with 7mm four-sided chain links made from 3t manganese steel. Its patent-pending end link design secures the chain to a hardened deadbolt, providing extra holding power and eliminating critical vulnerability. The disc-style cylinder is pick and drill resistant, while the weather-resistant nylon sleeve protects the chain against scratches and the elements. With a 48-inch (120cm) chain length, it is a flexible, compact, and easy-to-use deterrent security.

What We Like
Heavy-duty construction
High theft deterrent
Good length for securing
Durable and rust-resistant
Appealing design
What We Don't Like
Weight may be cumbersome
Lock cylinder can be finicky
#TOP 3

Kryptonite Keeper 785 Bike Lock Chain

152080
Black
32 Inch
Kryptonite Keeper 785 Bike Lock Chain Cover
Kryptonite Keeper 785 Bike Chain Lock, 2.8 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence

The Kryptonite Keeper 785 Integrated Bicycle Lock Chain comes in three new colors and is made from 7mm four-sided chain links using 3T MANGANESE STEEL, with a patent-pending END LINK DESIGN that secures the chain to a hardened deadbolt, eliminating critical vulnerability. It features a hardened DEADBOLT DEDSIGN for extra holding power, and a HIGH SECURITY DISC-STYLE CYLINDER that is pick and drill resistant. The lock also comes with 2 NEW ERGONOMIC "I" KEYS and a durable WEATHER-RESISTANT nylon sleeve to prevent scratches. The chain length is 33.5” (85cm).

What We Like
High build quality
Easy to use
Good length for versatility
Includes spare key
Budget-friendly option
What We Don't Like
Heavier than U-locks
Limited chain length
#TOP 4

Kryptonite Evolution 1090 Bike Chain Lock

Black / Orange
35.5"
Kryptonite Evolution 1090 Bike Chain Lock Cover
Kryptonite Evolution Mini Bike Chain Lock, 3 Feet Long 10mm Steel Chain Heavy Duty Anti-Theft Sold Secure Gold Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence

The Kryptonite Evolution 1090 Bike Chain Lock features a new patent-pending design that secures the chain to a hardened deadbolt, eliminating any weak links due to the extensive holding power of the link itself against attacks. The 10mm six-sided chain links are made of 3t manganese steel, and the high security disc-style cylinder is pick and drill resistant. The weather-resistant nylon sleeve prevents scratches, and the compact coiling makes it easy to carry. The lock comes with 3 stainless steel keys, including one with a high-intensity LED bulb for easy unlocking in the dark.

What We Like
Excellent build quality
Thick, sturdy chain
Heavy-duty security
Peace of mind
Key registry program
What We Don't Like
Relatively heavy
Complex locking mechanism
#TOP 5

Titanker Bike Chain Lock

1030200300018
Titanker Bike Chain Lock Cover
Titanker Heavy Duty Bicycle Lock Chain with Keys - 3 Feet Anti-Theft Lock for Bikes, Motorcycles, Doors, Gates, Fences, Grills (6mm Thick)

Titanker Bike Chain Lock is a heavy-duty anti-theft bicycle chain lock made of 6mm thick security heavy-duty steel chain links. It comes with a protective cloth sleeve and dust cover to protect the chain from rust and scratches. The overall length of the chain lock is about 3 feet and the lock weight is 1.4 pounds. Ideal for bicycles, ladders, lawnmowers, stroller, scooter, fences, tool boxes, sport equipment and etc.

What We Like
Easy to use
Good quality materials
Includes two keys
Strong and secure
Weather-resistant coating
What We Don't Like
Delivery was slightly delayed
#TOP 6

Kryptonite Keeper 790 7mm Chain Combo Lock

3281
Black
One Size
Kryptonite Keeper 790 7mm Chain Combo Lock Cover
Kryptonite Keeper 790 Combo Bike Chain Lock, 3 Feet Long Heavy Duty Anti-Theft Sold Secure Gold Bicycle Chain Lock, 4-Digit Resettable Combination Lock for E-Bike Scooter Road Mountain Bikes,Black

The Kryptonite Keeper 790 7mm Chain Combo Lock is a durable bike lock with an end link locking point for strong holding power, 4-sided 3t manganese steel chain links, and a 4-digit resettable combination with over 10,000 possible codes. The lock has a universal fit and is ideal for cycling enthusiasts who want to secure their bike safely.

What We Like
Sturdy construction
Easy-to-set combination
High security
Protects bike from scratches
Heavy-duty chain
What We Don't Like
Quite heavy
Number dial visibility issues
#TOP 7

Titanker Bike Chain Lock

TK-A010302US-1
Black-8mm Chain
Titanker Bike Chain Lock Cover
Titanker Bike Chain Lock, Security Anti-Theft Chain Lock for Motorcycle, Bicycle, Door, Gate, Fence, Grill (6mm, 8mm, 10mm Thick Chain) (Black-8mm Chain)

The Titanker Bike Chain Lock is a heavy-duty and high-quality security lock made of cut-resistant steel, available in 6mm, 8mm, and 10mm chain thickness options. It comes with 2 keys, a protective cloth sleeve, and a dust cover. The lock is about 3.3 feet long and weighs 2.5 pounds, making it portable and easy to carry. Remember to lubricate the lock and never leave your bike locked outside for long periods of time.

What We Like
Affordable price
Durable and secure
Easy locking mechanism
Protective nylon cover
Lightweight and portable
What We Don't Like
Cloth cover wears over time
Inconsistent locking mechanism reported
#TOP 8

Kryptonite Kryptolok 915 Chain Lock

000846
Gold
Kryptonite Kryptolok 915 Chain Lock Cover
Kryptonite Kryptolok 915 Bike Chain Lock, 5 Feet Long Heavy Duty Anti-Theft Sold Secure Gold Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence

The Kryptonite Chain Lock offers robust security for your bike or scooter. Its 9mm chain links are crafted from durable manganese steel, ensuring strength against theft attempts. The innovative end link design connects the chain to a hardened deadbolt, eliminating weak points in the lock. Additionally, the hardened deadbolt enhances protection, making it difficult for thieves to break in. With a high-security disc-style cylinder that resists picking and drilling, you can feel confident knowing your belongings are safe. This lock is built to withstand harsh weather, thanks to its protective nylon sleeve, keeping your bike secure and scratch-free.

What We Like
Highly secure lock
Heavy and robust design
Disc detainer lock
Effective against cutting tools
Good for expensive bikes
What We Don't Like
Lock mechanism can be finicky
Heavy to carry
#TOP 9

NDakter Bike Chain Lock

ND-1006-BK
Black
NDakter Bike Chain Lock Cover
NDakter Bike Chain Lock, 5 Digit Combination Heavy Duty Anti Theft Bicycle Chain Lock, 3.2/4.27/5Ft Long Security Resettable Bike Locks for Bike, Bicycle, Scooter, Motorcycle, Door, Gate, Fence

The NDakter Bike Chain Lock is a heavy-duty, 5-digit combination lock that provides excellent security for your bike, scooter, motorcycle, or other valuable items. The lock cylinder is made of zinc alloy, making it hard to break through, while the 0.27 inch alloy steel chain is drill-resistant and anti-tech unlocking. The lock is wrapped in scratch-proof polypropylene fabric, which protects the chain and prevents it from scratching your bike frame. With a code design, you don't have to worry about carrying keys, and the lock is resettable with 10,000 possible combinations. The chain is 3.2 feet long, making it suitable for locking multiple bikes together or securing your bike to a tree, gate, fence, or other fixed object. NDakter provides a one-year warranty, and the lock is backed by excellent customer reviews.

What We Like
Great value for money
Easy combination setup
Sturdy and solid construction
Portable and easy to store
Attractive colors available
What We Don't Like
Somewhat heavy for carrying
#TOP 10

Kryptonite Kryptolok 912 Combo Chain Bike Lock

003274
Black
Generic
Kryptonite Kryptolok 912 Combo Chain Bike Lock Cover
Kryptonite Kryptolok 912 Combo Bike Chain Lock, 4 Feet Long Heavy Duty Anti-Theft Sold Secure Gold Bicycle Chain Lock, 5-Digit Resettable Combination Lock for E-Bike Scooter Road Mountain Bikes

The Kryptonite Kryptolok 912 Combo Chain Bike Lock features 4-sided 3t manganese steel chain links, providing extensive holding power with an end link locking point. The 5 digit resettable combination offers over 100,000 codes for added security. This bike lock is suitable for various bike models.

What We Like
Heavy-duty security
Combination lock (no keys needed)
Easy to operate
Protective chain cover
Long and flexible chain
What We Don't Like
Some assembly issues
Very heavy
Buying Guide Image

Decide Which Bike Chain Locks Are Best for You

Introduction

When it comes to securing your bicycle, a good chain lock is essential. With so many options on the market, choosing the right one can be overwhelming. In this article, we will discuss some important factors to consider when selecting a bike chain lock.

Size and Weight

One of the first things to consider when choosing a bike chain lock is its size and weight. If you plan on carrying the lock with you while riding, you'll want something that is lightweight and easy to transport. On the other hand, if you're locking your bike up at a fixed location, a heavier and larger lock may be more secure.

Materials

Another important factor to consider is the material the lock is made of. Typically, bike chain locks are made of either steel or titanium. Steel is the most common and affordable option, but it is also heavier and can rust over time. Titanium, on the other hand, is lighter and more resistant to rust and corrosion, but it is also more expensive.

Security Ratings

When it comes to security, not all bike chain locks are created equal. Look for a lock that has been rated by a third-party organization such as Sold Secure or the ART Foundation. These organizations test locks for their resistance to different types of attacks, such as cutting or picking, and assign a security rating accordingly. The higher the security rating, the more resistant the lock is to tampering.

Ease of Use

In addition to security, you should also consider how easy the lock is to use. Some locks come with keyless technology, allowing you to unlock them with a code or a smartphone app. This can be convenient, but it also introduces another potential point of failure. Keyed locks, on the other hand, are more traditional but may be more difficult to use if you have multiple locks or if you lose your key.

Price

Of course, price is also an important factor to consider when choosing a bike chain lock. While it may be tempting to go for the cheapest option, remember that a good lock is an investment in the security of your bicycle. It's worth spending a little extra to get a lock that is both secure and durable.

Conclusion

In conclusion, there are several factors to consider when choosing a bike chain lock. Size and weight, materials, security ratings, ease of use, and price are all important considerations. Take the time to research and compare different options to find the right lock for your needs.

Frequently Asked Questions (FAQs)

1. Are bike chain locks effective?

Yes, bike chain locks are effective in deterring opportunist thieves. The visible presence of a chain lock alone can discourage theft. The flexibility of chain links allows for easy locking to a variety of objects, enhancing security.

2. Are chain locks harder to cut?

Chain locks are more difficult to cut, especially with power tools. However, their advantage in security comes at the cost of being significantly heavier compared to u-locks offering similar levels of security.

3. What can I use instead of a bike lock?

If you don't have a bike lock, there are alternative methods to secure your bike temporarily. You can use your helmet's straps to block the rear wheel, put your bike in the highest gear, drop the chain, park uphill, or remove the front wheel's quick release. However, these methods are not as secure as using a proper bike lock.

4. Can thieves cut bike locks?

Bolt cutters are commonly used by bike thieves to cut through bike locks. Cable locks and some chain locks can be easily cut with bolt cutters. To protect against this technique, it is recommended to invest in a high-quality U-lock or chain lock made of hardened steel.

5. Can bolt cutters cut a Kryptonite chain lock?

While no lock is completely impervious, Kryptonite chain locks, such as the Fahgettaboudit Mini, are designed to be highly resistant. The 18mm hardened steel shackle of the Fahgettaboudit Mini cannot be easily cropped by hand with bolt cutters.

Editor's Notes

During our bike chain lock research, we found 24 bike chain lock products and shortlisted 10 quality products. We collected and analyzed 172,713 customer reviews through our big data system to write the bike chain locks list. We found that most customers choose bike chain locks with an average price of $33.47.

The bike chain locks are available for purchase. We have researched hundreds of brands and picked the top brands of bike chain locks, including Sportneer, Kryptonite, Titanker, NDakter. The seller of top 1 product has received honest feedback from 1,986 consumers with an average rating of 4.9.

Written by
Jason Kiser Avatar

Jason Kiser is an editor who lives in California, he previously worked in a travel agency for ten years, which enabled him to travel a number of interesting countries and experience several different cultures along the way. His range of job and travel experiences grant him expertise in hiking, camping, outdoors and fitness.

Bike Chain Locks Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
#TOP7
#TOP8
#TOP9
#TOP10
Brand Sportneer Kryptonite Kryptonite Kryptonite Titanker Kryptonite Titanker Kryptonite NDakter Kryptonite
Special Feature Anti Theft,Anti-theft,Heavy Duty,Resettable Anti-theft KRYPTONITE Keeper 785 Integrated Chain-32' (7 mm x 85 cm) Unisex Adult Chain, Black, 7 Key Unlock Portable,Heavy Duty,Anti-theft Resettable Anti-theft,Heavy Duty,Portable Anti-theft,Heavy Duty Anti Theft,Heavy Duty,Resettable 13mm hardened Performance steel
Lock Type Combination Lock Pin Tumbler Key Lock Chain lock Key Lock Combination Lock Key Lock Key Lock Combination Lock Combination Lock
Item dimensions L x W x H 4.72 x 5.91 x 2.76 inches 7.09 x 7.09 x 1.18 inches 7.87 x 3.15 x 1.97 inches 10 x 8 x 4 inches 9.21 x 4.69 x 1.65 inches 1.18 x 35.4 x 1.18 inches 6.81 x 6.06 x 2.4 inches 3.15 x 1.18 x 1.18 inches 39.37 x 1.57 x 1.57 inches 3.15 x 1.18 x 1.18 inches
Material Alloy Steel, Zinc Metal Steel Plastic Steel Steel Steel Nylon,Steel Zinc (lock cylinder component), Alloy Steel Alloy Steel
FTB Score
ftb score rating icon 9.9
ftb score rating icon 9.8
ftb score rating icon 9.6
ftb score rating icon 9.6
ftb score rating icon 9.5
ftb score rating icon 9.4
ftb score rating icon 9.4
ftb score rating icon 9.4
ftb score rating icon 9.2
ftb score rating icon 9.0
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