Bike chain locks, while sometimes overlooked in favor of u-locks, offer a unique set of advantages for bicycle security. Their flexibility and length provide versatility in locking options, and certain designs enhance portability. However, their weight can be a significant drawback. Understanding the nuances of Bike Chain And Lock combinations is crucial for making an informed decision.
Chain lock around seat post
Compared to other types of bike locks, chain locks exhibit enhanced resistance to specific theft techniques. They are immune to bottle jack and leverage attacks and present a greater challenge to power tool assaults like angle grinders.
Despite these benefits, it’s essential to acknowledge their primary disadvantage: weight. Chain locks are considerably heavier than u-locks providing comparable security levels. This weight factor necessitates categorizing chain locks into two distinct groups:
- Portable Chain Locks: Lighter options designed for everyday street use and convenient bike transport.
- Stationary Chain Locks: Heavier-duty chains intended for fixed locations like homes, workplaces, sheds, or garages.
Prior to purchasing a bike chain and lock, determine your priority: portability or maximum stationary security?
This guide explores six top-rated bike chain locks based on rigorous testing, categorized by portability and stationary use. Furthermore, it includes a comprehensive guide to selecting the ideal chain lock tailored to your specific security needs, along with a quick quiz to determine your required security level.
Table of Contents
The 6 Best Bike Chain Locks
1. Seatylock Viking Silver: Best Mid-Security Portable Chain
2. Kryptonite Kryptolok Series 2: Security & Practicality in Perfect Balance!
3. Best High Security Portable Chain: Kryptonite Evolution or Hiplok Gold?
4. Hiplok DXXL: Best For Ebike and Stationary Security
5. Hiplok Mega Chain: The Ultimate Stationary Chain Lock for Bicycles and Motorbikes
How to Choose a Chain Lock for Your Bicycle
The Chain
The Lock
Chain Locks: Length vs Weight
Portable vs Stationary Chains
Choosing a Portable Chain Lock
A Chain Lock for the Street and the Home?
Choosing a Stationary Chain Lock
Best Bike Chain and Lock Summary
Portable Chain Locks
Stationary Chain Locks
The 6 Best Bike Chain Locks
1. Seatylock Viking Silver: Best Mid-Security Portable Chain
The SeatyLock Viking Silver stands out as the only 7mm link chain lock with a Sold Secure Silver rating. This distinction signifies an excellent strength-to-weight ratio, enabling a longer chain length without excessive heft.
Seatylock Viking Silver 90| Seatylock Viking Silver 90 |
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Viking Silver 90 Pros
- Unique magnetic fastening system
- Easy to carry and operate
- Good medium-level security
- Versatile locking options
Viking Silver 90 Cons
- Rubber sheath durability could be improved
- More affordable Silver-rated locks are available
Testing the 35.4″ (90 cm) version, weighing 2.98 lbs (1.35 kg), equivalent to 3.5 cans of soda, reveals it’s not a featherweight lock. Numerous lighter u-locks exist. However, its 90 cm length offers significantly more locking flexibility than any u-lock, including securing two bikes simultaneously, which is quite remarkable.
Seatylock Viking Silver 90 around lamppost
However, it’s not intended for high-risk environments. Its 7mm chain links are susceptible to bolt cutters if a thief gains leverage by positioning the lock close to the ground.
The solution lies in maintaining chain elevation. For a 7mm chain, tightly wrap it around the top tube or seat stays and rear wheel, keeping it elevated.
Seatylock Viking Silver 90 high up on stand
A notable feature of the SeatyLock Viking is its magnetized shackle. This innovative design simplifies joining the ends, especially in crowded bike racks, enhancing user-friendliness.
The SeatyLock Viking is also available in 43.3″ (110 cm) and 55.1″ (140 cm) lengths for extended reach. A shorter 21.5″ (55 cm) version would be ideal for city cyclists prioritizing chain flexibility with u-lock-like compactness.
Seatylock Viking Silver 90 vs Kryptonite Kryptolok
Potential drawbacks include its mid-security level and build quality concerns. Compared to the robust plastic casing of Kryptonite locks, the Viking’s thin rubber sheath appears less durable and can be easily displaced, exposing the chain links.
Nonetheless, the Viking Silver range presents the lightest Sold Secure Silver-rated chain locks. If you seek a chain offering extensive locking options without excessive weight, it’s a worthwhile consideration.
For in-depth details, refer to the comprehensive SeatyLock Viking Silver 90 review.
2. Kryptonite Kryptolok Series 2: Security & Practicality in Perfect Balance!
The Kryptonite Kryptolok Series 2 chain locks represent a substantial security upgrade from the SeatyLock Viking.
This series features 9mm chain links and a Pedal Cycle Gold rating from Sold Secure. Various lengths are available, with the 955 Mini being tested for review.
Kryptonite KryptoLok Series 2 955 Mini
| Kryptonite Kryptolok Series 2 955 Mini |
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Kryptolok Series 2 955 Mini Pros
- Excellent build quality
- Sold Secure Pedal Gold rating
- Compact and lightweight
Kryptolok Series 2 955 Mini Cons
- May be too short for some users
- Not the highest security Gold-rated lock
The Kryptonite KryptoLok Series 2 955 Mini measures just 21.5″ (55 cm), providing similar locking space to a standard u-lock. This compact length minimizes weight and bulk, enhancing portability.
Kryptonite Kryptolok Chain Mini 955 around seat stays
Despite its enhanced security over the SeatyLock Viking 90, the Kryptonite KryptoLok Series 2 955 Mini is only slightly heavier at 1.77 kg (3.90 lb), comparable to 4.5 cans of soda.
Kryptonite Kryptolok Chain Mini 955 around lamppost
For those desiring the extended locking reach of chains, the Kryptonite KryptoLok Series 2 offers lengths of 37.5″ (95 cm), 47.3″ (120 cm), and 60.0″ (150 cm). However, longer lengths significantly increase weight, with the 60.0″ (150 cm) version reaching 3.67 kg (8.10 lb), equivalent to 10 soda cans.
Kryptonite Kryptolok Chain Mini 955 around seat post
Combination lock versions are also available in two lengths, representing the only Sold Secure-rated combination chain locks aside from lower-rated Bronze options.
While not suited for extremely high-risk scenarios, the Kryptonite Kryptolok Series 2, when kept off the ground, offers robust defense against theft and boasts excellent build quality for long-term durability.
Detailed insights can be found in the comprehensive Kryptonite KryptoLok Series 2 955 Mini review.
3. Best High Security Portable Chain: Kryptonite Evolution or Hiplok Gold?
Choosing between the Kryptonite Evolution Series 4 1055 Mini and the Hiplok Gold as the best high-security portable chain lock is challenging, as the ideal choice depends on individual priorities.
The Kryptonite Evolution Series 4 1055 Mini prioritizes lighter weight, compact size, and enhanced security but is shorter in length.
Kryptonite Evolution Series 4 1055 Mini
| Kryptonite Evolution Series 4 1055 Mini |
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Evolution Series 4 1055 Mini Pros
- Excellent build quality
- Top-tier portable security
- Compact and relatively lightweight
Evolution Series 4 1055 Mini Cons
- May be too short for some situations
- Less convenient to carry around
Conversely, the Hiplok Gold emphasizes ease of carrying and greater locking versatility due to its length but is heavier and slightly less secure.
Hiplok Gold chain lock| Hiplok Gold Chain |
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Hiplok Gold Chain Pros
- Wearable like a belt for easy transport
- High level of portable security
- Longer length offers more locking options
Hiplok Gold Chain Cons
- Slightly less secure than Kryptonite Evolution
- Heavier than Kryptonite Evolution
Both the Kryptonite Evolution Series 4 and the Hiplok Gold, featuring 10mm chain links, represent a security upgrade from the Kryptonite KryptoLok Series 2, despite sharing the same Pedal Cycle Gold rating from Sold Secure.
Kryptonite Evolution Series 4 1055 around front wheel
It’s important to note that while both achieve a Sold Secure Gold rating, the Kryptonite Evolution holds a 3-star rating from ART (suitable for motorcycles), whereas the Hiplok Gold has a 2-star rating, indicating slightly lower security.
Hiplok Gold chain lock around back wheel
The 10mm link chains of both locks introduce significant weight and portability challenges. The Hiplok Gold addresses this by being wearable around the waist like a belt.
Hiplok Gold Chain worn like belt
Note: The Hiplok Gold is not designed to be locked around the waist for safety reasons. It features a clip for quick fastening and unfastening and adjusts to fit waists from 28” (71 cm) to 44” (112 cm).
Weighing 2.4 kg (5.3 lb), similar to 6.5 soda cans, the Hiplok Gold carries noticeable weight but remains comfortable when worn.
The Hiplok Gold is available in a single 33.5″ (85 cm) length, offering ample locking options. The Kryptonite Evolution Series 4 comes in four lengths, from 21.5″ (55 cm) to 63.0″ (160 cm).
Kryptonite Evolution Series 4 1055 with Coke
For portable security, the shortest 21.5″ (55 cm) Kryptonite Evolution Series 4 is recommended due to weight considerations. The 35.5″ (90 cm) version, closer in length to the Hiplok Gold, weighs considerably more at 7.5 soda cans, becoming cumbersome for everyday carry without the wearable design of the Hiplok Gold.
The shortest Kryptonite Evolution Series 4 is lighter than the Hiplok Gold at 2 kg (4.4 lb), equivalent to 5.5 soda cans, while providing comparable internal locking space to a standard u-lock with added chain flexibility.
Hiplok Gold chain with Coke
The choice hinges on prioritizing Hiplok Gold’s length and portability versus Kryptonite Evolution Series 4 1055 Mini’s higher security and lighter weight. For city cyclists with standard bikes, the Kryptonite Evolution might be preferable. However, ebike or city bike riders, or those needing to lock multiple bikes, might find the Hiplok Gold’s length and wearability more advantageous.
Refer to the detailed Kryptonite Evolution Series 4 1055 Mini review and Hiplok Gold review for further information.
4. Hiplok DXXL: Best For Ebike and Stationary Security
The Hiplok DXXL offers a high-security solution for various applications, primarily as a stationary chain lock for home, shed, or garage security.
Hiplok DXXL| Hiplok DXXL |
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Hiplok DXXL Pros
- Extremely high security
- Suitable for both stationary and portable security
- Generous chain length and noose design
Hiplok DXXL Cons
- Premium price
Weighing 6.11 kg (13.46 lb), equivalent to 16.5 soda cans, the Hiplok DXXL is not ideal for daily bike commuting.
Its 14mm chain links are highly resistant to cropping, especially when employing locking techniques that maximize ground clearance. The accompanying 14mm shackle u-lock further enhances security.
The Hiplok DXXL combination achieves Sold Secure Pedal Cycle Diamond, the highest rating for bicycle locks.
Hiplok DXXL chain around bike
The 39.0″ (100 cm) chain utilizes a noose design, optimizing its usable length by eliminating the need for doubling back around the bike and anchor point. The included u-lock (Hiplok DX) adds further reach.
Paired with a ground or wall anchor like the Hiplok ANKR [Amazon], the Hiplok DXXL creates a highly practical and secure home bike storage solution.
The Hiplok DX u-lock, included with the DXXL, can also be used independently as a portable street lock. Its belt clip enhances portability and is recognized as a top-rated mini u-lock.
Hiplok DX around back wheel
The Hiplok DXXL provides both excellent stationary and viable portable security. While the Hiplok DX is a mini u-lock, potentially limiting its versatility in all situations, ebike owners or riders less concerned about weight can carry both the chain and u-lock for maximum security in diverse scenarios.
For detailed information on the u-lock, consult the Hiplok DX review. A comprehensive review of the Hiplok XL chain is forthcoming.
5. Hiplok Mega Chain: The Ultimate Stationary Chain Lock for Bicycles and Motorbikes
While the Hiplok DXXL serves as an excellent stationary chain lock for most users, the Hiplok Mega Chain represents the pinnacle of chain lock security available for purchase.
Hiplok Mega Chain| Hiplok Mega Chain |
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Hiplok Mega Chain Pros
- Unsurpassed chain security
- Noose design for efficient length utilization
- Compatible with high-security D1000 & DX1000 u-locks
Hiplok Mega Chain Cons
- Very high cost
- Extremely heavy and bulky
- Incompatible with some ground anchors
Although theoretically vulnerable to the largest bolt cutters under specific conditions (ground leverage, proper technique, and substantial force), the Hiplok Mega Chain addresses the demand for ultimate chain lock security, particularly with Pragmasis and Almax no longer operating. Its 22mm links are impervious to bolt cutters.
22mm represents the thickest chain link size practically achievable in bike locks; any thicker would be excessively unwieldy.
The Hiplok Mega Chain weighs 12.3 kg (27 lb), equivalent to 33 soda cans. Its 51″ (130 cm) length, coupled with a noose design, maximizes locking efficiency.
Hiplok Mega Chain around motorbike
The Hiplok Mega Chain does not include a lock and its substantial links may not fit through all ground anchor openings. Careful consideration is needed when selecting compatible components.
It is compatible with angle grinder-resistant u-locks like the Hiplok D1000 and DX1000 (and thus also the Litelok X1 and X3). The chain can be looped around the bike and secured with one of these u-locks attached to a ground anchor.
Ground anchors accommodating this chain’s thickness are available. Consult the guide to the best ground anchors for chain size compatibility.
Hiplok Mega Chain noose
Hiplok offers bundles combining the Mega Chain with the DX1000 u-lock, or with the DX1000 u-lock and A1000 ground anchor, at discounted prices and discounted prices respectively.
The Hiplok Mega Chain, when paired with the right lock and ground anchor, provides an unparalleled security setup for bicycles.
How to Choose a Chain Lock for Your Bicycle
Selecting the right bike chain and lock requires careful consideration of several key factors. This section delves into these aspects, including a quiz to help determine your specific security needs. We’ll also review Sold Secure-rated chain locks with link diameters ranging from 6mm to 16mm.
The Chain
Chain quality varies significantly. Reliable security necessitates chain links crafted from high-grade, core-hardened steel alloy that resists brittleness. Purchasing from reputable brands like Kryptonite, OnGuard, Abus, or Hiplok ensures this quality.
Chain links typically feature rounded edges. However, some security chains now employ hexagonal or square links, purported to be more resistant to bolt cutters by distributing pressure over a larger area.
Hexagonal chain links
Round chain links
However, in practice, used bolt cutters with blade imperfections can catch on the edges of these shaped links, potentially facilitating grip. Consequently, differently shaped links offer no demonstrably superior protection over round links and may even be easier to cut.
Ultimately, chain link thickness dictates security level.
| Chain Link Thickness | Vulnerable to Bolt Cutters? |
|---|---|
| < 10 mm | Yes (medium size) |
| 13 – 15 mm | Yes (only largest 36″ and 42″) |
| 16 mm and above | No |
Links under 10 mm diameter are easily cut with medium bolt cutters if properly positioned. 10-12 mm links can sometimes be cut with medium bolt cutters by skilled thieves with good leverage. 13-15 mm links resist all but the largest 42″ bolt cutters, uncommon among bike thieves. Links 16 mm and thicker are impervious to manual bolt cutters.
Different chain link sizes
Regardless of thickness, keeping the chain elevated off the ground significantly reduces cropping risk. Thieves require ground leverage for effective bolt cutter operation. Higher chain placement diminishes leverage and cutting effectiveness.
The Lock
A chain lock’s overall security is limited by its weakest component. A robust chain paired with a substandard padlock negates the chain’s strength.
Chain locks typically include integrated locking mechanisms, sometimes padlocks, mini u-locks, or permanently integrated designs. The locking mechanism must be dependable and resist leverage, picking, pulling, and drilling attacks.
Kryptonite New York disc lock
OnGuard Beast padlock
Shackles, if present, should match or exceed the chain link thickness or be shrouded to prevent bolt cutter access.
Chain Locks: Length vs Weight
Chain locks offer greater locking versatility than u-locks due to their extended length. However, increased length directly translates to increased weight. Chain locks are inherently heavy. Even lighter chains can be too cumbersome for comfortable backpack carry.
While luggage racks, baskets, or seat post wrapping offer transport solutions, minimizing weight necessitates choosing the shortest chain length that meets your locking needs.
Before purchasing, measure your typical locking scenarios with a rope to determine the required chain length.
Accept that chain locks will always be heavier than u-locks providing equivalent security.
| Kryptonite Kryptolok Chain Lock | Kryptonite Kryptolok U-Lock |
|---|---|
| Internal Space: 21.5″ (55 cm) | Internal Space: 21.5″ (55 cm) |
| Weight: 3.90 lb (1.77 kg) | Weight: 2.85 lb (1.29 kg) |
| Security rating: 6/10 | Security rating: 6/10 |
For example, the Kryptonite Kryptolock Series 2 u-lock weighs 2.85 lb (1.29 Kg). The lightest Kryptolock Series 2 chain lock at the same security level weighs 3.90 lbs (1.77 Kg), nearly a pound heavier (30% increase). Both offer 21.5″ (55 cm) internal locking space. While chain flexibility is advantageous, it doesn’t drastically expand locking options compared to the u-lock for this length.
A more practical 37.5″ (95 cm) Krytolock Series 2 chain lock weighs 5.55 lbs (2.52 Kg), almost double the u-lock’s weight.
Chain locks are heavy. If weight is a concern, consider a u-lock or a folding lock instead.
Portable vs Stationary Chains
Distinguishing between portable and stationary chain lock needs is crucial.
Portable chain locks are carried daily for securing bikes in public spaces. Stationary chain locks remain at a fixed location (home, etc.) for prolonged bike security.
While some locks attempt to bridge both needs, they compromise effectiveness in both areas. A two-lock system, with separate locks for street and home use, provides superior security and practicality.
Choosing a Portable Chain Lock
How Secure Should Your Chain Lock Be?
Sold Secure ratings provide the most reliable measure of bike lock security. Refer to the guide on choosing the best bike lock for more information on Sold Secure.
Sold Secure rates locks as Bronze (least secure), Silver, Gold, or Diamond (most secure).
Determine your required Sold Secure rating using this quick quiz:
[Quiz about Security Level – Quiz content from original article needs to be integrated here for complete rewrite, or removed if not feasible]
The quiz recommends Silver, Gold, or Diamond rated locks. Bronze locks are insufficient for any situation.
Security varies within each rating. Thicker chain links within a Silver, Gold, or Diamond rating generally indicate higher security.
How Long Should Your Chain Lock Be?
Chain locks offer extended locking options compared to u-locks. Longer chains provide more versatility but increase weight and cost.
Choose the shortest chain length that meets your locking needs. Use a rope to simulate chain length in your typical locking scenarios.
How Should You Secure Your Bike with a Portable Chain?
Avoid using chain locks like u-locks, securing frame and wheels close to the ground.
Chain lock close to the ground
Ground proximity allows thieves to leverage bolt cutters against the chain.
Kryptonite Kryptolok Chain Mini 955 around lamppost
Secure only the frame, tightly wrapping the chain around the top tube. This minimizes chain length, weight, and maximizes ground clearance, hindering bolt cutter attacks.
Explore wheel security options separately. Learn more about proper bike locking techniques.
If wheel and frame protection is desired:
- Use a longer chain to encompass top tube and wheel, keeping the lock elevated.
Chain lock further from the ground
- Secure through seat stays and rear wheel, maintaining ground clearance.
Kryptonite Kryptolok Chain Mini 955 around seat stays
How Will You Carry Your Chain Lock Around?
Shorter, thinner chains can wrap around seat posts. Chain bags attach to frames. Wearable chain locks exist.
Hiplok Gold chain lock belt
Consider seat post space, bag capacity, or wearable options before purchase. Chain transport can be more challenging than with other lock types. Explore bike lock carrying solutions.
6 mm Chain Locks
Avoid 6 mm chain locks. They are easily cut and lack adequate security. No 6 mm chain lock exceeds a Sold Secure Bronze rating, insufficient for bike protection.
Exception: tex-lock, a 6 mm chain encased in textile, resembling rope.
Tex-lock eyelet with X-lock
The Tex-lock Eyelet combined with the X-lock offers a versatile and surprisingly secure lightweight chain lock option.
Textile adds chain protection. Paired with Sold Secure Gold-rated X-lock, it offers versatility. X-lock secures frame, chain protects wheels in high-risk areas. Chain secures frame, X-lock protects wheel in low-risk areas, with extended chain reach.
| Model | Weight | Cans of Soda | Length | Sold Secure rating | ART rating |
|---|---|---|---|---|---|
| Tex-Lock Eyelet and X-lock S | 1.42 kg(3.13 lb) | 4 | 31.5 “(80 cm) | Pedal Gold | 3 stars |
| Tex-Lock Eyelet and X-lock M | 1.69 kg(3.73 lb) | 4.5 | 47.2 “(120 cm) | Pedal Gold | 3 stars |
| Tex-Lock Eyelet and X-lock L | 1.94 kg(4.28 lb) | 5 | 63.0 “(160 cm) | Pedal Gold | 3 stars |
Textile-covered chain is not Sold Secure rated, suitable only for brief stops in low-risk areas. X-lock is very narrow, fitting only Sheffield stand-sized objects.
Read the full tex-lock review and see why the X-lock made the best lightweight bike lock list before buying.
Update: Get 10% off Tex-lock products with code “bestbikelock10”.
7 mm Chain Locks
7 mm chain locks offer minimal acceptable bike protection. Seatylock Viking Silver is the only 7mm chain with Sold Secure Silver rating.
Click links below to check Amazon prices.
| Model | Weight | Cans of Soda | Length | Sold Secure rating | ART rating |
|---|---|---|---|---|---|
| Seatylock Viking Silver 90 | 1.35 kg(2.98 lb) | 3.5 | 35.4 “(90 cm) | Pedal Silver | |
| Seatylock Viking Silver 110 | 1.6 kg(3.53 lb) | 4.5 | 43.3 “(110 cm) | Pedal Silver | |
| Seatylock Viking Silver 140 | 1.95 kg(4.3 lb) | 5 | 55.1″(140 cm) | Pedal Silver |
Weight in “cans of soda” helps visualize chain lock heaviness. Click “+” above image on mobile to see weight and security ratings.
7 mm chains are suitable for low-risk scenarios, short unattended periods, and careful locking techniques.
Avoid using 7mm chains like u-locks, as ground proximity makes them vulnerable to bolt cutters.
Seatylock Viking Silver 90 around top tube
Wrap 7mm chains tightly around the top tube and anchor object to maximize ground clearance. While large bolt cutters and strength could still crop 7mm chains without ground leverage, most bike thieves lack these.
Utilize alternative wheel protection methods to avoid compromising overall bike security with a weaker chain.
8 mm Chain Locks
8 mm chains, slightly thicker than 7 mm, offer marginally better security but remain Silver-rated by Sold Secure.
Click links below to check Amazon prices.
| Model | Weight | Cans of Soda | Length | Sold Secure rating | ART rating |
|---|---|---|---|---|---|
| Abus Steel-O-Chain9808 85 | 1.75 kg(3.86 lb) | 4.5 | 33.46 “(85 cm) | Pedal Silver | 2 stars |
| Abus Steel-O-Chain9808 110 | 2.55 kg(5.62 lb) | 7 | 43.3 “(110 cm) | Pedal Silver | 2 stars |
| Abus Steel-O-Chain9808 140 | 2.8 kg(6.17 lb) | 7.5 | 55.11 “(140 cm) | Pedal Silver | 2 stars |
| Abus Steel-O-Chain9808 170 | 3.21 kg(7.08 lb) | 8.5 | 66.93 “(170 cm) | Pedal Silver | 2 stars |
| Abus Iven Chain8210 85 | 1.93 kg(4.26 lb) | 5 | 33.0 “(85 cm) | Pedal Silver | 2 stars |
| Abus Iven Chain8210 110 | 2.5 kg(5.5 lb) | 6.5 | 43.0 “(110 cm) | Pedal Silver | 2 stars |
| Hiplok Original | 1.8 kg(3.97 lb) | 5 | 33.46 “(85 cm) | Pedal Silver | 2 stars |
| Hiplok Homie Silver | 2.6 kg(5.73 lb) | 7 | 47.24 “(120 cm) | Pedal Silver | 2 stars |
| Squire DCL1 J3Chain Lock | 1.7 kg(3.75 lb) | 4.5 | 36.02 “(91.5 cm) | Pedal Silver | |
| Oxford Chain 8 | 2.0 kg(4.5 lb) | 5.5 | 39.37 “(100 cm) | Pedal Silver | |
| Trelock BC 480 110 | 1.9 kg(4.19 lb) | 5 | 43.3 “(110 cm) | Pedal Silver | |
| AXA Absolute 8-90 | 1.74 kg(3.84 lb) | 4.5 | 35.43 “(90 cm) | Pedal Silver | 2 stars |
| AXA Absolute 8-110 | 1.96 kg(4.32 lb) | 5.5 | 43.3 “(110 cm) | Pedal Silver | 2 stars |
| Squire Chainlok 8 | 1.8 kg(3.97 lb) | 5 | 33.5 “(85 cm) | Pedal Silver | |
| Squire J3 | 1.73 kg(3.81 lb) | 4.5 | 36 “(91.5 cm) | Pedal Silver | |
| Abus Ionus8900 | 2.08 kg(1.86 lb) | 5.5 | 43.3 “(110 cm) | Pedal Silver | 2 stars |
| Linka Lasso 8 | 1.8 kg(3.9 lb) | 5 | 39.4 “(100 cm) | Pedal Silver | 2 stars |
Hiplok Original [Amazon] is a top 8 mm chain lock with good weight-to-length ratio and a wearable Velcro strap.
Hiplok chain locks can be conveniently worn around the waist like a belt for transport.
Hiplok Homie Silver, designed for stationary home use, is less recommended as 8 mm chains are insufficient for robust home security.
8 mm chain lock weights are becoming significant, with lightest options equaling 4.5 soda cans, exceeding weights of many Sold Secure Gold rated standard u-locks.
Use 8 mm chains with top tube or seat stay wrapping to prevent ground-leveraged bolt cutter attacks.
9 mm Chain Locks
9 mm chains offer significantly enhanced security, many achieving Sold Secure Gold ratings. However, Gold ratings often accompany a 2/5 ART rating, placing them at the lower end of the Gold security spectrum.
Click links below to check Amazon prices.
| Model | Weight | Cans of Soda | Length | Sold Secure rating | ART rating |
|---|---|---|---|---|---|
| Kryptonite KryptoLok Series 2 990 Combo Chain | 2.65 kg(5.85 lb) | 7 | 35.5 “(90 cm) | Pedal Gold | |
| Kryptonite KryptoLok Series 2 912 Combo Chain | 3.33 kg(7.35 lb) | 9 | 47.3 “(120 cm) | Pedal Gold | |
| Kryptonite KryptoLok Series 2 955 Mini Integrated Chain | 1.77 kg(3.90 lb) | 4.5 | 21.5 “(55 cm) | Pedal Gold | 2 stars |
| Kryptonite KryptoLok Series 2 995 Integrated Chain | 2.52 kg(5.55 lb) | 7 | 37.5 “(95 cm) | Pedal Gold | 2 stars |
| Kryptonite KryptoLok Series 2 912 Integrated Chain | 3.04 kg(6.7 lb) | 8 | 47.3 “(120 cm) | Pedal Gold | 2 stars |
| Kryptonite KryptoLok Series 2 915 Integrated Chain | 3.67 kg(8.10 lb) | 10 | 60.0 “(150 cm) | Pedal Gold | 2 stars |
| Abus CityChain 1010 85 | 1.95 kg(4.3 lb) | 5 | 33.0 “(85 cm) | Pedal Gold | |
| Abus CityChain 1010 110 | 2.4 kg(5.29 lb) | 6.5 | 43.0 “(110 cm) | Pedal Gold | |
| Abus CityChain 1010 140 | 2.74 kg(6.04 lb) | 7.5 | 55.0 “(140 cm) | Pedal Gold | |
| Abus CityChain 1010 170 | 3.38 kg(7.45 lb) | 9 | 67.0 “(170 cm) | Pedal Gold | |
| Axa Cherto 95 | 2.16 kg(4.76 lb) | 6 | 37.4 “(95 cm) | Pedal Gold | |
| AXA Absolute 9-90 | 2.24 kg(4.94 lb) | 6 | 35.4 “(90 cm) | Pedal Gold | 2 stars |
| AXA Absolute 9-110 | 2.73 kg(6.02 lb) | 7.5 | 43.3 “(110 cm) | Pedal Gold | 2 stars |
| AXA Newton ProMOTO-2 | 2.35 kg(5.18 lb) | 6.5 | 39.37 “(100 cm) | Pedal Gold | |
| Milenco Coleraine Chain Lock 100 | 2.4 kg(5.29 lb) | 5 | 39.37 “(100 cm) | Pedal Gold | |
| Milenco Coleraine Chain Lock 140 | 2.98 kg(6.57 lb) | 8 | 55.1 “(140 cm) | Pedal Gold | |
| Milenco Coleraine Chain Lock 180 | 3.90 kg(8.6 lb) | 10.5 | 70.87 “(180 cm) | Pedal Gold | |
| Trelock BC 580 | 2.2 kg(4.85 lb) | 6 | 43.3 “(110 cm) | Pedal Gold | 2 stars |
Kryptonite Kryptolok Series 2 and Abus CityChains [Amazon] are good 9 mm chain lock options. Abus CityChains are lighter for their length, while Kryptonite chains are often more affordable and offer optional anti-theft protection for bikes up to $1,500 / £800.
9 mm locks are heavy; even the short Series 2 955 weighs over 4 soda cans. Longer 9 mm chains are significantly heavier.
Kryptonite and Abus offer frame-mountable carry cases and bags for easier chain transport. Check weights before purchasing to avoid weight surprises.
10 mm Chain Locks
10 mm chains are approaching the limit of portable security, being very heavy. Shorter 10 mm chains are usable daily, but still substantial.
Click links below to check Amazon prices.
| Model | Weight | Cans of Soda | Length | Sold Secure rating | ART rating |
|---|---|---|---|---|---|
| Master Lock 8234 | 2.3 kg(5.07 lb) | 6 | 35.43 “(90 cm) | Pedal Silver | |
| Kryptonite Evolution Series 4 1055 | 2 kg(4.4 lb) | 5.5 | 21.5 “(55 cm) | Pedal Gold | 3 stars |
| Kryptonite Evolution Series 4 1090 | 2.77 kg(6.10 lb) | 7.5 | 35.5 “(90 cm) | Pedal Gold | 3 stars |
| Kryptonite Evolution Series 4 1016 | 4.40 kg(9.70 lb) | 12 | 63.0 “(160 cm) | Pedal Gold | 3 stars |
| OnGuard Mastiff 8019 | 3.04 kg(6.7 lb) | 8 | 43.0 “(110 cm) | Pedal Gold | |
| OnGuard Mastiff 8019L | 4.76 kg(10.5 lb) | 13 | 72.0 “(183 cm) | Pedal Gold | |
| Abus Granit CityChain X-Plus 1060 85 | 2.1 kg(4.63 lb) | 5.5 | 33.0 “(85 cm) | Pedal Gold | 3 stars |
| Abus Granit CityChain X-Plus 1060 110 | 2.65 kg(5.84 lb) | 7 | 43.0 “(110 cm) | Pedal Gold | 3 stars |
| Abus Granit CityChain X-Plus 1060 140 | 3.26 kg(7.19 lb) | 8.5 | 55.0 “(140 cm) | Pedal Gold | 3 stars |
| Abus Granit CityChain X-Plus 1060 170 | 3.75 kg(8.27 lb) | 10 | 67.0 “(170 cm) | Pedal Gold | 3 stars |
| Abus Ivy Chain 9100 85 | 2.45 kg(5.4 lb) | 6.5 | 33.0 “(85 cm) | Pedal Gold | |
| Abus Ivy Chain 9100 110 | 2.9 kg(6.4 lb) | 8 | 43.0 “(110 cm) | Pedal Gold | |
| Abus Ivy Chain 9100 140 | 3.85 kg(8.49 lb) | 10.5 | 55.0 “(140 cm) | Pedal Gold | |
| Abus Ivy Chain 9100 170 | 4.85 kg(10.69 lb) | 13 | 67.0 “(170 cm) | Pedal Gold | |
| Hiplok Gold | 2.4 kg(5.3 lb) | 6.5 | 33.5 “(85 cm) | Pedal Gold | 2 stars |
| Hiplok Homie | 4.6 kg(10.14 lb) | 12.5 | 59 “(150 cm) | Pedal Gold | 2 stars |
| Hiplok EDX | 3.5 kg(7.72 lb) | 9.5 | 39.37 “(100 cm) | Pedal Gold | |
| Oxford HD Loop Chain Lock | 2.81 kg(6.19 lb) | 7.5 | 47.2 “(120 cm) | Pedal Gold | |
| Seatylock Viking 90 | 2.4 kg(5.3 lb) | 6.5 | 35.4 “(90 cm) | Pedal Gold | |
| Seatylock Viking 110 | 2.8 kg(6.2 lb) | 7.5 | 43.3 “(110 cm) | Pedal Gold | |
| Seatylock Viking 140 | 3.40 kg(7.5 lb) | 9 | 55.1 “(140 cm) | Pedal Gold | |
| Zefal K-Traz M18 | 3.25 kg(7.17 lb) | 8.5 | 43.3 “(110 cm) | Pedal Gold | |
| Yale YCL3 Chain Lock 110 | 3.15 kg(6.94 lb) | 8.5 | 43.3 “(110 cm) | Pedal Gold | |
| Yale YCL3 Chain Lock 180 | 4.63 kg(10.2 lb) | 12.5 | 70.8 “(180 cm) | Pedal Gold | |
| Pewag VKK10x35 Chain | 2.93 kg(6.46 lb) | 8 | 39.97 “(100 cm) | Pedal Gold | |
| Burg Wachter 1010S | 2.02 kg(4.45 lb) | 5.5 | 39.97 “(100 cm) | Pedal Gold | |
| Burg Wachter 1015S | 2.94 kg(6.48 lb) | 8 | 59.6 “(150 cm) | Pedal Gold | |
| Burg Wachter 1020S | 3.96 kg(8.73 lb) | 10.5 | 78.74 “(200 cm) | Pedal Gold | |
| Squire Warrior 55CS Chain 1200 | 4.05 kg(8.93 lb) | 11 | 47.28 “(120 cm) | Pedal Gold | |
| Squire Warrior Combi 55CS 1200 | 4.07 kg(8.97 lb) | 11 | 47.28 “(120 cm) | Pedal Gold | |
| Oxford Chain 10 | 3.3 kg(7.28 lb) | 9 | 55.11 “(140 cm) | Pedal Gold | |
| Oxford HD Chain | 3.37 kg(7.43 lb) | 9 | 59 “(150 cm) | Pedal Gold | |
| OnGuard Mastiff 8019LP | 3.67 kg(8.1 lb) | 10 | 51.18 “(130 cm) | Pedal Gold | |
| Squire Stronghold IC850 | 3.26 kg(7.19 lb) | 8.5 | 85 cm | Pedal Diamond | |
| Kryptonite EvolutionSeries 4 1012 | 3.08 kg(6.8 lb) | 8.5 | 47.25 “(120 cm) | Pedal Gold | |
| Squire G3 | 2.79 kg(6.15 lb) | 7.5 | 36 “(91.5 cm) | Powered Gold |
Hiplok Homie [Amazon] is designed for home use with a 60″ (150 cm) length suitable for securing multiple bikes.
Hiplok Homie comes with a wall hook
The Hiplok Homie includes a wall hook for convenient storage when not in use at home.
For mobile security, integrated locks are more convenient for frequent locking and unlocking. Hiplok Gold [Amazon] prioritizes portability. Kryptonite Evolution Series 4 1055 Mini [Amazon], Abus Granit CityChain X-Plus 1060/85 [Amazon], and Seatylock Viking Gold offer faster locking with integrated mechanisms. Seatylock Viking [Amazon] features a magnetic mechanism for easier connection in crowded racks.
Read reviews of Hiplok Gold and Kryptonite Evolution chain lock for more details.
A Chain Lock for the Street and the Home?
Locks attempting to serve both street and home use often compromise performance in both areas. Short lengths for portability limit home usability.
12 mm Chain Locks
12 mm chains are at the limit of portable daily use, being very bulky and heavy.
Click links below to check Amazon prices.
| Model | Weight | Cans of Soda | Length | Sold Secure rating | ART rating |
|---|---|---|---|---|---|
| Kryptonite New York Chain 1210 | 3.92 kg(8.65 lb) | 10.5 | 39.0 “(100 cm) | Pedal Gold | |
| Kryptonite New York Chain 1217 | 5.96 kg(13.15 lb) | 16 | 67.0 “(170 cm) | Pedal Gold | |
| Kryptonite New York Noose 1275 | 3.15 kg(6.95 lb) | 8.5 | 30.0 “(75 cm) | Pedal Gold | |
| Kryptonite New York Noose 1213 | 4.79 kg(10.55 lb) | 13 | 51.0 “(130 cm) | Pedal Gold | |
| Oxford HD Max Chain 120 | 2.54 kg(5.60 lb) | 7 | 47.2 “(120 cm) | Pedal Gold | |
| Oxford HD Max Chain 150 | 3.58 kg(7.89 lb) | 9.5 | 59.1 “(150 cm) | Pedal Gold | |
| Oxford HD Max Chain 200 | 4.77 kg(10.52 lb) | 13 | 78.7 “(200 cm) | Pedal Gold | |
| OKG Noose Chain Lock 80 | 3.9 kg(8.6 lb) | 10.5 | 31.5 “(80 cm) | Pedal Gold | |
| OKG Noose Chain Lock 120 | 5.12 kg(11 lb) | 13.5 | 47.28 “(120 cm) | Pedal Gold | |
| OKG Noose Chain | 3.4 kg / metre(7.5 lb) | 9 | 0.8 m, 1.0 m1.2 m, 1.5 m | Pedal Gold | |
| Magnum Plus Goliath HLKM102 | 2 kg(4.4 lb) | 5.5 | 43.3 “(110 cm) | Pedal Gold | |
| Milenco Coleraine 12 | 4.96 kg(10.93 lb) | 13.5 | 1 m1.4 m1.8 m | Pedal Diamond | |
| Milenco Dundrod 12 | 3.87 kg +(8.53 lb) + | 10.5 | 1 m1.4 m1.8 m | Pedal Diamond | |
| Oxford Monster 12 | 5.20 kg +(11.46 lb) + | 14 | 1.2 m1.5 m2.0 m | Pedal Diamond | |
| Oxford Patriot | 4 kg +(8.82 lb) + | 10.5 | 1.2 m1.5 m2.0 m | Pedal Diamond | 4 stars |
12 mm locks offer very high security, often Sold Secure Gold or Diamond rated with 3/5 or 4/5 ART ratings, suitable for motorbikes and ebikes.
12 mm chains remain vulnerable to 42″ bolt cutters with ground leverage. Maintain ground clearance even with thick chains.
Kryptonite New York Noose [Amazon] is a top 12 mm chain lock featuring a noose design for increased effective length, saving weight and bulk. Read the Kryptonite New York Noose 1275 review for details.
Shorter 12 mm locks are borderline portable; longer versions are best suited for stationary home security. Kryptonite New York [Amazon] chain locks are good for home use, available in three lengths with a separate 14 mm shackle disc lock and optional anti-theft protection covering bikes up to $3,500 / £1300.
12 mm locks offer excellent high security for home and street use if weight is manageable and used correctly.
Choosing a Stationary Chain Lock
For home security, portability is not a factor. Home bike theft is prevalent, exceeding street theft rates. Prioritize maximum affordable security, meaning the thickest affordable chain lock.
14 mm Chain Locks
14 mm chains are strictly stationary security locks, too heavy for regular transport.
Click links below to check Amazon prices.
| Model | Weight | Cans of Soda | Length | Sold Secure rating | ART rating |
|---|---|---|---|---|---|
| Kryptonite New York Fahgettaboudit Chain 1410 | 4.90 kg(10.80 lb) | 13 | 39.0 “(100 cm) | Powered Gold, Pedal Diamond | |
| Kryptonite New York Fahgettaboudit Chain 1415 | 6.92 kg(15.25 lb) | 18.5 | 60.0 “(150 cm) | Powered Gold, Pedal Diamond | |
| Milenco Dundrod Chain Lock | 5.6 kg(12.35 lb) | 15 | 39.37 “(100 cm) | Powered Gold, Pedal Diamond | |
| Hiplok XL Noose | 5 kg(11 lb) | 13.5 | 39.0 “(100 cm) | Pedal Diamond | |
| Hiplok DXXL Noose and U-lock | 6.11 kg(13.46 lb) | 16.5 | 39.0 “(100 cm) | Pedal Diamond | |
| Milenco Dundrod 14 | 5.02 kg +(11.07 lb) + | 13.5 | 1 m1.4 m1.8 m | Pedal Diamond | |
| OnGuard 8016 Beast | 6.71 kg(14.8 lb) | 18 | 43 “(110 cm) | ||
| OnGuard 8016L Beast | 9.98 kg(22 lb) | 27 | 72 “(183 cm) |
14 mm locks are highly secure. Kryptonite New York Fahgettaboudit is Sold Secure Bicycle Diamond and Motorcycle Gold rated.
14 mm chains can theoretically be cut by largest bolt cutters with skilled thieves, weight, and proper positioning. Maintain ground clearance, possibly using wall anchors in sheds/garages.
Kryptonite’s New York Fahgettaboudit chains have 15 mm double locking shackles, 10/10 in-house security rating, Sold Secure ratings, and optional anti-theft protection up to $3,750 / £2000.
OnGuard Beast 8017
The OnGuard Beast offers very high security and is often a more budget-friendly option.
OnGuard’s Beast chains have 14 mm quadruple locking shackles, 99/100 in-house rating, and optional (less reliable) anti-theft protection up to $5001. OnGuard locks are very secure despite lacking Sold Secure ratings (due to not being submitted for testing), and are usually more affordable than Kryptonite, but less pick-resistant with less reliable after-sales care.
Hiplok DXXL Noose is a recommended option due to its included portable u-lock.
15 mm Chain Locks
15 mm chain locks are less common. Kryptonite New York Legend is a highly regarded but harder-to-find 15 mm lock.
Click links below to check Amazon prices.
| Model | Weight | Cans of Soda | Length | Sold Secure rating | ART rating |
|---|---|---|---|---|---|
| Artago Stone 68T100 | 3.39 kg(7.48 lb) | 9 | 39.0 “(100 cm) | Powered Gold | |
| Kryptonite New York Legend Chain 1590 | 4.31 kg(9.50 lb) | 11.5 | 36 “(90 cm) | 5 stars | |
| Kryptonite New York Legend Chain 1515 | 7.23 kg(15.95 lb) | 19.5 | 60 “(150 cm) | 5 stars |
15 mm chains are theoretically croppable by skilled thieves with largest bolt cutters, but this is very rare.
ART 5/5 star rating signifies maximum security. Kryptonite New York Legend has a 16 mm double locking, shrouded shackle, and optional anti-theft protection up to $4500 / £2500.
The New York Legend 1515 is considered one of the most secure and widely available bike chain locks on the market.
Kryptonite New York Legend is likely the most secure bike chain from major brands. Read the New York Legend review for details. Artago Stone 68T100 is another impressive, more readily available option, but untested.
16 mm Chain Locks
16 mm chains are impervious to manual bolt cutters, only defeatable by power tools.
| Model | Weight | Cans of Soda | Length | Sold Secure rating | ART rating |
|---|---|---|---|---|---|
| Pragmasis Protector 16 mm | 4.5 kg / metre(9.92 lb) | 12 | 0.8 – 6 m | Pedal Diamond | |
| Oxford Nemesis | 6.76 kg(14.9 lb) | 18 | 59 “(150 cm) | Powered Gold, Pedal Diamond | |
| Oxford Nemesis | 8.55 kg(18.8 lb) | 23 | 78.7 “(200 cm) | Powered Gold, Pedal Diamond | |
| Almax Immobiliser Series III | 4.15 kg(9.15 lb) | 11 | 28 “(700 cm) | ||
| Almax Immobiliser Series III | 7.75 kg(17.09 lb) | 21 | 60″(150 cm) | ||
| Almax Immobiliser Series III | 10 kg(22.05 lb) | 27 | 79 “(200 cm) | ||
| Almax Immobiliser Series III | 12.25 kg(27 lb) | 33 | 98 “(250 cm) | ||
| Pragmasis Protector | 5.5 kg(12.13 lb) | 15 | 39 “(100 cm) | ||
| Pragmasis Protector | 7.75 kg(17.09 lb) | 21 | 60 “(150 cm) | ||
| Pragmasis Protector | 10 kg(22.05 lb) | 27 | 79 “(200 cm) | ||
| Pragmasis Protector | 12.25 kg(27 lb) | 33 | 98 “(250 cm) | ||
| Squire TC16 5 | 8.44 kg(18.61 lb) | 22.5 | 59 “(150 cm) | Powered Gold |
16 mm chains are incredibly heavy, non-portable, and can damage bikes due to weight.
British brands Pragmasis and Almax (now out of business) previously produced top 16 mm chains. Oxford Nemesis is a viable alternative. Consider upgrading to the 22mm Hiplok Mega Chain for ultimate security.
Best Bike Chain and Lock Summary
Two main types of bike chain locks exist: portable and stationary.
Portable Chain Locks
Portable chains have links under 13 mm (12 mm maximum practical portability). Heavier than u-locks, but offer advantages:
- Versatile locking to various objects.
- Sometimes easier transport by wrapping around seat post/top bar.
- Resistant to leverage attacks, harder to angle grind.
Disadvantage: portable chain links can be cropped by manual bolt cutters if close to the ground.
Secure portable chains by tightly wrapping around top tube or seat stays to maximize ground clearance and deter bolt cutter attacks.
Compromise on wheel security if necessary, prioritizing frame security. Wheel security options available.
Carefully check weights before purchase. Even shortest portable chains are heavy. U-locks are better for weight-sensitive users.
Hiplok chains offer good security-to-weight ratios and wearable options.
Seatylock Viking Silver is good for low-risk scenarios. Kryptonite Kryptoloks or Abus CityChains [Amazon] are better for medium risk. Kryptonite Evolution Series 4 1055 Mini, Hiplok Gold, or Kryptonite New York Noose are recommended for high-risk situations.
Stationary Chain Locks
Stationary chains typically exceed 13 mm links, best for immobile, overnight security due to:
- Security: Resistant to bottle jacks, leverage attacks, harder to angle grind, >15 mm links are bolt cutter-proof.
- Practicality: Ideal for ground/wall anchors in sheds/garages, longer chains can secure multiple bikes.
Chain lock security depends on the weakest link. Ensure anchor points are equally secure. Invest in a good ground anchor and learn proper bike locking techniques.
This guide aims to assist in finding the best bike chain and lock. Regularly clean and lubricate chain locks to prevent jamming.
For feedback or questions, please comment below.
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