The 6 Best 18 mm Chain Locks (2023 reviews)

If you often find yourself scrambling for good lock, kryptonite disk lock should be your first option for buying. This chain & lock are heavy duty and well-constructed and should deter a thief. It includes a maximum security new york disc lock with a 15mm max-performance steel shackle. The bolt cutters are big enough to cut either the chain or the lock. The nylon sleeve is great for protecting the finish of your bike, or whatever else you want to secure.

It’s strong, durable and well made. The chain is extremely heavy, and solid enough to use on a motorcycle. This will certainly slow the thieves down.

Why We Like This:

Super heavy duty lock for home use
Super heavy duty and looks pretty cool
One of the new comers and featured product

Best Heavy Chain: BIGLUFU 18 mm Chain Lock

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This lock is very sturdy and durable. It is 60” / 150cm, long enough to lock 3 to 4 motorcycles together, also ideal for locking lawnmowers, sports equipment, tool boxes, motorcycle & scooter, skateboards, gates, fences, grills, ladders etc. The chain lock is wrapped by a water-resistant nylon sleeve, which is scratch-proof and wear-resistant, and protects the chain from scratching your property. It is made of hard and durable stainless steel, never bent or twist. This will make any potential thief think twice about having to cut through two 15mm links to get your crappy bike safe for sure.

Why We Like This:

A great gift to friends, families, or students who needs it
Bike alarm that hides, and a cellular tracker
New and hot release

Best For many things: power sports 18 mm Chain Lock

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Kryptonite makes great locks and using their cables and multiple locks in concert is likely to provide more Bicycle Security than this monster. It includes a maximum security new york disc lock with a 15mm max-performance steel shackle. It really makes it unmistakeable/visible while protecting your bike from that beefcake 2000 beast of a chain. It provides excellent protection to add to that this one is truly twice as thick.

The product tag included with the lock has the necessary information about the optional theft protection. Its design is also convenient and user-friendly, with a keyless locking system that allows for quick and easy use. This is HUGE and VERY VERY Heavy, or almost overkill for a Bicycle Lock.

Why We Like This:

Gives a real meaning to "swimming with the fishes
Durable construction, water resistant lock for the outdoors
Ultimate security but huge and heavy

Best Motorcycle And Bicycle Chain: Kryptonite 18 mm Chain Lock

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Not everyone likes to purchase lock for their regular usage, but the kryptonite 18 mm chain lock would be an anomoly. The New York disc lock features a 15 mm hardened max performance steel shackle with a double deadbolt anti. It has a rotation design that resists bolt cutters and twisting leverage attacks. It includes three stainless steel keys with an ergonomic design to reduce torque and keep them from bending or breaking. The length also allows you to put the chain through the front and back tires and the frame.

It will fit on the bike, scratches paint (possibly bending handlebars or- getting in the way while riding) MUST CARRY IN BACKPACK. It is also quite burly. The bike itself is heavy, and weighs about. It's a thick lock but it's definitely the weak spot.

Why We Like This:

Simply peace of mind when leaving behind valuables
Lot of satisfied buyers

Best For extensive holding power: OKG 18 mm Chain Lock

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U-locks are a bit like giant padlocks that fasten around your pickup trunk or spare tire and whatever you're trying to secure it to. It feels strong enough to give the mfrs some hard time. It can be used as a bicycle lock or motorcycle disc brake lock, or gate fence lock, or gate fence lock. The outer shell is a sort of weather-resistant plastic, with a sliding door to open and close the keyway and keep dirt and ice out of it. The core is a disc-detainer type.

It’s nice and sturdy lock, paired with one of those Chinese disk lock with the siren, is a good set, just lock one on each side of the break caliper, so the wheel won’t spin, and you’re good to go. The Thick locking lugs on either side of the shackle hold it in place, and look plenty strong to resist hand-tool attacks. There’s no anti deft lock, if they want your bike really bad, they will have the tool to break/pick your lock, so be smart and try to give them as much as you can in hard time, also, make it loud af.

Why We Like This:

Good investment for long term
Delivers what they promise

Best With A padlock: Skysonic 18 mm Chain Lock

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The skysonic 18 mm chain lock's high-end materials makes sure that it ages well with use. This chain and lock set is fairly good, as an entry-level option for motorcycle security. It works great to secure bikes, scooters, golf carts, gates and anything else you can imagine. This set of chain and lock comes with two keys and a blue nylon chain sheath that will cut down on gouges and scratches when used on your bike frame. The chain makes it easy to lock the bike to all kinds of anchoring point. It is made of hard and durable stainless steel, making it never bent or twist. There is a sleeve on it to help with the prevention of quick cutting, and the bolt itself is quite sturdy.

If you're looking to use this type of chain and lock with a bicycle, this is a great option due to the really light weight. This is a heavy chain, definitely meant for motorcycles.

Why We Like This:

Secure chain and lock for many uses
Excellent security at an astonishing value proposition
Heavy duty but not cut proof or unbreakable
Great lock to help deter thieves

The 6 Best 18 mm Chain Locks (2023 reviews)

Our Top Picks:

Best Overall: Kryptonite disk Lock

Best Heavy Chain: BIGLUFU 18 mm Chain Lock

Best For many things: power sports 18 mm Chain Lock

Best Motorcycle And Bicycle Chain: Kryptonite 18 mm Chain Lock

Best For extensive holding power: OKG 18 mm Chain Lock

Best With A padlock: Skysonic 18 mm Chain Lock

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