Best Medium Size Cycling Chain Locks of 2026

Luke Dobson Avatar
Luke Dobson
Last Updated: 9 Feb 2026

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These medium size cycling chain locks are an essential accessory for any cyclist looking to secure their bike. The locks are made from durable materials and are designed to provide a high level of security against theft. With their compact size, they are easy to carry around on your bike and can be quickly and easily attached to any suitable anchor point. Whether you're commuting to work or going on a leisurely ride, these chain locks are a must-have for any cyclist looking to protect their bike from theft.

At a Glance: Our Top Picks

Diyife Heavy Duty Anti-Theft Chain Lock Cover #TOP 1
Diyife Heavy Duty Anti-Theft Chain Lock
ftb score rating icon 9.9
Diyife 0.8m Heavy Duty Anti-Theft Bike Lock Cover #TOP 2
Diyife 0.8m Heavy Duty Anti-Theft Bike Lock
ftb score rating icon 9.8
GRIFEMA GA1201-12 High Security Bike Lock Cover #TOP 3
GRIFEMA GA1201-12 High Security Bike Lock
ftb score rating icon 9.6

Top 10 Medium Size Cycling Chain Locks

Diyife Heavy Duty Anti-Theft Chain Lock

TAL63
Black
0.9M
Diyife Heavy Duty Anti-Theft Chain Lock Cover
Diyife Heavy Duty Bike Lock - 0.9m Anti-Theft High Security Chain with 3 Keys, Weatherproof Padlock for Bicycle, Motorcycle, Scooter, Door, Gate, Fence

The Diyife Chain Lock offers robust security for your bicycle and other valuables. Made from high-strength stainless steel, its 6 mm thickness effectively resists saws and cutting tools, ensuring your belongings are well-protected. The upgraded lock cylinder prevents technical unlocking, giving you peace of mind. Its waterproof and anticorrosive design protects against the elements, while the comfortable wear-resistant cover enhances usability. This lock is versatile enough to secure bikes, motorbikes, gates, and more, making it an ideal choice for any user.

What We Like
High-strength stainless steel
Anti-theft lock cylinder
Waterproof and rust-resistant
Versatile for multiple uses

Diyife 0.8m Heavy Duty Anti-Theft Bike Lock

TAL63-S
Black
0.7M
Diyife 0.8m Heavy Duty Anti-Theft Bike Lock Cover
Bike Lock Heavy Duty, (3 Keys) Diyife 0.7m Anti-Theft High Security Chain Lock, Weatherproof Bicycle Lock Padlock for Bike Bicycle, Motorcycle, Scooter, Door, Gate, Fence, Black

The Diyife Heavy Duty Lock offers excellent security with its 4 mm thick high-strength stainless steel chain, effectively resisting saw attacks. Its waterproof and wear-resistant cover ensures your lock remains protected from the elements, providing a reliable experience. The sophisticated lock cylinder prevents technical unlocking, giving you peace of mind. Additionally, with three keys that can be removed when locked, you won’t have to worry about misplacing them. This lock is ideal for securing bicycles, motorbikes, and more.

What We Like
Highly secure against theft
Waterproof and rust-resistant
Easy to carry and store
Versatile for various uses

GRIFEMA GA1201-12 High Security Bike Lock

GA1201-12
Black/White
GRIFEMA GA1201-12 High Security Bike Lock Cover
GRIFEMA GA1201-12 Bike Locks High Security with 2 Keys, Bike Chain Lock Heavy Duty, 120cm Bicycle/Cycling Locks for Bike Cycle, Moto, Door, Gate Fence, Black/White

The GRIFEMA Bike Chain Lock offers high anti-theft protection with its durable zinc alloy lock cylinder and robust 7mm diameter chain. This makes it difficult for intruders to break through, giving you peace of mind. With two keys provided, you can easily keep a spare to avoid being locked out. The waterproof feature ensures that the lock cylinder remains free from dust and rust, prolonging its lifespan. Additionally, the nylon cover protects against scratches, safeguarding your bicycle frame while enhancing the lock’s durability.

What We Like
High anti-theft protection
Includes two keys
Waterproof and dustproof
Scratch-proof nylon cover
Versatile for multiple uses

SPGOOD 90 cm Steel Chain Bike Lock

Black
SPGOOD 90 cm Steel Chain Bike Lock Cover
SPGOOD Bike Lock with 3 Keys - 90 cm with 6 mm Steel Chain, Anti-Theft High Security Bicycle Chain Lock with Waterproof Cover for Bicycle, E-Bike, MTB, Motorcycle

The SPGOOD Chain Lock offers excellent security for your bicycle or e-bike. With a 90 cm length and a robust 6 mm thick hardened steel chain, you can secure multiple bikes effectively, deterring potential thieves. Its high-quality nylon cover protects your bike from scratches and UV damage, enhancing durability. Additionally, the waterproof cover design prevents rain and snow from rusting the lock cylinder, ensuring reliable use in all weather conditions. With three keys included, you gain extra convenience and peace of mind.

What We Like
Durable steel chain
Scratch-resistant cover
Waterproof lock design
Includes three keys
Versatile use for various items

BEEWAY Heavy Duty Bike Chain Lock

CHALOC#1
Black
BEEWAY Heavy Duty Bike Chain Lock Cover
BEEWAY Bike Chain Lock, Heavy Duty 5-Digit Resettable Combination Lock Ideal for Bicycle, Motorbike, Scooter, Fence, Gate - 90cm, 9 Colors

The BEEWAY Bike Chain Lock offers exceptional security for your bicycle with its ultra-thick 6mm manganese steel construction, protecting against cutting and sawing. The keyless 5-digit combination lock provides over 100,000 possible codes, ensuring convenient yet robust protection. Its reinforced plug and lock core are made from durable zinc alloy, preventing rust and enhancing longevity. Additionally, the lock's nylon fabric covering protects both the lock and your bike frame from scratches, extending its lifespan while adding a touch of style.

What We Like
Exceptional theft protection
Keyless convenience
Durable and rust-resistant
Scratch protection for bikes
Versatile for various uses
#TOP 6

SPGOOD Heavy Duty Bike Lock with 5-Digit Code

A-black
SPGOOD Heavy Duty Bike Lock with 5-Digit Code Cover
SPGOOD Bike Locks Heavy Duty/Bicycle Chain/Cycling Lock (14 Colors) 5-Digits Codes Resettable 100,000 Codes for Bike Cycle, Moto, Door, Gate Fence 830mm Length(Black)

The SPGOOD Bike Lock offers a practical solution for securing your bicycle, scooter, or other belongings. With a 5-digit personal password that you can easily customise, it ensures your items are protected from theft. The lock is made from improved materials, enhancing its durability for long-term use. Its 830 mm length and 750 g weight make it versatile enough to secure various items. Additionally, the 7 mm thick hardened steel chain provides strong protection, giving you peace of mind wherever you go.

What We Like
Customisable 5-digit password
Durable materials used
Versatile 830 mm length
Strong 7 mm steel chain
Available in 14 colours
#TOP 7

Burg-Wachter 1M Sold Secure Gold Bike Chain and Lock Kit

Burg-Wachter 1M Sold Secure Gold Bike Chain and Lock Kit Cover
Burg-Wachter 1M Sold Secure Gold Bike Chain and Lock Kit, Black

Features
1M Sold Secure Gold 10mm Thick Chain
Special Alloy Case Hardened Steel
Hardened Steel U-Lock – Sold Secure Diamond Security Rating
Ideal For Securing High Value Bikes & Motorcycles

H&S Heavy Duty Motorbike Lock and Chain

H&S
Silver
H&S Heavy Duty Motorbike Lock and Chain Cover
H&S Heavy Duty Motorbike Lock with Padlock | 6mm x 1.2m | Motorcycle & Scooter Lock with Security Chain | 2m Bike Locks High Security | Strong Chain & Locking Padlock (6mm Dia x 1200mm Length)

The H&S Motorbike Chain Lock is a robust solution for securing your motorcycle or scooter. Made from triple heat-treated boron manganese steel, it offers exceptional cut resistance and durability, giving you peace of mind. With a 1.2 metre long chain featuring 6mm wide links, it effectively resists leverage attacks. The water-resistant nylon sleeve protects your bike from scratches, ensuring your equipment remains in pristine condition. This high-security padlock and chain set is also versatile enough to secure various items like garden equipment and tools.

What We Like
Strong and durable construction
Resists leverage attacks
Scratch-proof protective cover
Versatile for various uses
#TOP 9

Sportneer Heavy Duty Bike Chain Lock

98ca82c4-bbe3-4567-a453-12c4b1bc73a9
Black
8mm*100cm
Sportneer Heavy Duty Bike Chain Lock Cover
Sportneer Bike Chain Lock Heavy Duty Bicycle Lock 8mm Dia Thick High Security Anti-Theft Cycling Locks Uncuttable Portable with 2 Keys for Scooter, Bike, Motorcycle, Door, Gate, Fence, Grill

The Sportneer Bike Lock features an ultra-thick 8mm chain made from premium manganese steel, ensuring your property remains secure against theft. Its waterproof and dirt-proof cap keeps the keyhole clean and functional, saving you time during use. Additionally, the wear-resistant protective cover prevents scratches on your bike, maintaining its appearance. The sturdy copper keys are designed for strength and durability, allowing you to keep a backup key at home for convenience. This versatile lock is perfect for securing not just bikes, but gates, doors, and other valuables as well.

What We Like
Ultra-thick chain for security
Waterproof and dirt-proof cap
Wear-resistant protective cover
Sturdy copper keys
Versatile for various items

Diyife Heavy Duty Bike Chain Lock

YNITTAL115-UK
Black
Diyife Heavy Duty Bike Chain Lock Cover
Diyife Bike Lock Heavy Duty, [Reforced Version] [4 Keys] 1m x 6mm Anti-Theft Bike Chain Lock High Security, Weatherproof Bicycle Lock 50mm Padlock for Bike, Motorcycle, Scooter, Door, Gate, Fence

The Diyife Bike Lock is designed for high security and convenience. With its robust 6mm thick stainless steel construction, it effectively resists cutting attempts, ensuring your bike remains safe. The heavy-duty padlock features a unique wrapped beam design, preventing technical unlocking and keeping your belongings secure. Additionally, its waterproof and anti-rust qualities mean you can use it in various weather conditions without worry. This versatile lock is perfect for not only bicycles but also motorbikes, gates, and fences, providing you with peace of mind wherever you go.

What We Like
High-strength stainless steel
Anti-theft padlock design
Waterproof and rust-resistant
Versatile for multiple uses
Buying Guide Image
Editor's Notes

During our medium size cycling chain lock research, we found 279 medium size cycling chain lock products and shortlisted 10 quality products. We collected and analyzed 143,383 customer reviews through our big data system to write the medium size cycling chain locks list. We found that most customers choose medium size cycling chain locks with an average price of £13.68.

The medium size cycling chain locks are available for purchase. We have researched hundreds of brands and picked the top brands of medium size cycling chain locks, including Diyife, GRIFEMA, SPGOOD, BEEWAY, H&S.

Written by
Luke Dobson Avatar

Luke is a runner, a climber, hiker, hunter, and a lot more. Luke Dobson is Celtic-born and has lived most of his life in Scotland. However, his sporting endeavours have taken him to several countries around Europe. He serves as a tour guide for countless companies and owns a couple of gyms and recreational centres in Scotland. Luke Dobson is proficient in 7 different languages. He maintains many sport article columns where he shares his wealth of experience in the sport industry.