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AKM

AKM Bike Lock Chain Lock 120cm/4ft Heavy Duty Durable 10mm Thick Ring Anti-Theft Bicycle Chain Lock with 4Keys Security 16mm U Lock Disc Lock for Bicycle,Moped,Scooter,Motorcycle

  • Based on 1,058 reviews
Condition: New
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon

Arrives May 13 – May 18
Order within 6 hours and 16 minutes
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Size: 4ft/120cm x 10mm Diameter Chain with Lock


Features

  • Strong ProtectionOur chain lock is made of durable 3T manganese steel. 10mm high strength square link chain is thick enough to withstand 6KN tension and 13KN shear force. Anti-theft lock cylinder design and rotating switch, prevent technical issues, rain, dust, and other intrusions.
  • Safety MaterialNon-toxic PVC material, sturdy ABS material, reinforced rust alloy steel chain, in line with EU environmental standards. Nylon sleeve provides additional protection and helps prevent scratches on your property. Ideal for outdoor use.
  • U Lock+4 KeysComes with a sturdy dics lock made of 16mm hard zinc alloy shackle and thick PVC coating. Resistant to cutting, breaking, sawing and shearing. 4 individual and ergonomic keys (One has LED light), made with idle stainless steel lock core, never bent or twist.
  • End Iron Ring+Wide Use50mm inner diameter iron circular ring, extend the range of use. Perfect for everyone and applicable to motorcycles, electric cars,electric bikes,cars, tricycles, doors, grills, ladders. Ideal for bicycle lock, motorcycle lock, combination lock, cable lock, chain lock, skateboards, sports equipment etc.
  • Specification1200mmx38mmx10mm (with 24 cut resistant chains). Weight: 6.8lb/3.1kg. New upgrade silver chain, non-toxic, more environmentally friendly materials. Long enough to lock 2 motorcycles together.According to the research ,the length of 1.2m is the most suitable length for people's daily use.

Brand: AKM


Special Feature: Heavy Duty,Anti-theft


Lock Type: Combination Lock


Material: Acrylonitrile Butadiene Styrene, Alloy Steel, Nylon, Polyvinyl Chloride, Stainless Steel, Zinc


Recommended Uses For Product: Security


Brand Name: AKM


Recommended Uses For Product: Security


Number of Pieces: 1


Model Number: cs010


UPC: 767550029546


Manufacturer: AKM


Manufacturer Part Number: cs010


Unit Count: 1 Count


Additional Features: Heavy Duty,Anti-theft


Lock Type: Combination Lock


Controller Type: Hand Control


Control Method: Touch


Style Name: Modern


Color: Black


Shape: Round


Material Type: Acrylonitrile Butadiene Styrene, Alloy Steel, Nylon, Polyvinyl Chloride, Stainless Steel, Zinc


Finish Types: Pvc


Item Weight: 2.4 Kilograms


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 13 – May 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Sturdy and intimidating to thieves
Size: 3ft/90cm x 10mm Diameter Chain with Lock
We've had this chain for a year and a half. It is attractive, holding up well, the cover over the chain is preventing damage to the bike, very pleased with that. I waited to leave a review so I could report on how it is wearing. It's wearing great, the included small U Lock is still functioning and not stuck, which is always good. The bike is stored in a covered but outdoor parking garage, so somewhat exposed to elements but not direct rain, just Florida humidity. We use the chain in 2 ways: out and about in a busy, downtown urban area that is notorious for bike theft. Had a bike stolen while we were at lunch here (only had a cable lock, never ever do that). No one will have time in broad daylight to cut through this chain in this urban environment, it is heavy heavy and will scare off any potential thief. You only need to be one of the more protected bikes downtown, as the thieves go for unlocked or cable locked bikes. The other use for us is locked up inside our gated condo garage. Twice our neighbors have had bikes stolen inside the garage, but not ours. Again, I think being one of the more secure set-ups compared to what else is available is making the difference for us. Could someone saw through the chain given enough time? Certainly, but it would take some time and tools. What we like is that our big U Locks, while they are lighter and really quick to pop on and off, super easy to use--- there are times that we don't have a good spot to lock them too, and they won't fit around a light pole or some other unique place. Also at home, the place we lock them too (a bolt in the cement wall), a U Lock wouldn't reach-- the chain gives you so many more options of how to lock even 2 bikes. But it is HEAVY, so heavy to work with, heavy to ride with, cumbersome to unlock it, wrap it around somewhere to travel with, finagle around to get it relocked. So if you don't have a specific reason to need the chain, a big enough U Lock is super easy. They say U Locks can be pried open, and cut open easier, so for overnight security, that is another reason we have both a chain and a U Lock. ... show more
Reviewed in the United States on November 23, 2020 by jujudee

  • Vary heavy
Size: 4ft/120cm x 10mm Diameter Chain with Lock
Very heavy duty. It was really surprised how big it was.But it definitely keeps your bike safe
Reviewed in the United States on March 24, 2026 by Brandie c

  • Excellent bike lock !
Size: 5ft/150cm x 12mm Diameter Chain with Lock
Excellent ! Need I say more ? No one‘s even tried to steal my bike. ! I bought two worth every penny .
Reviewed in the United States on December 9, 2025 by Casey R. Carlisle

  • Heavy and strong, I hope works for rats
Size: 4ft/120cm x 10mm Diameter Chain with Lock
Heavy but strong
Reviewed in the United States on October 23, 2025 by Cosme Fulanito

  • Works as intended
Size: 5ft/150cm x 12mm Diameter Chain with Lock
Haven’t had anyone attempt to break it or saw it so it has done its job. I like the material sleeve that cover the chains that way I don’t have to worry about it scratching my mountain bike frame. The keys are also much faster than having to fool around with a combination.
Reviewed in the United States on March 31, 2026 by Jordan Swezey

  • Strong lock keep your equipment
Size: 4ft/120cm x 12mm Diameter Chain with Lock
4 ft.chain need either a bag or some kind of cushion old bike paint in good shape
Reviewed in the United States on January 6, 2026 by Did not order slipshod delivery must have a lot in warehouse

  • Great chain
Size: 6ft/180cm x 12mm Diameter Chain with Lock
Very well built and heavy.
Reviewed in the United States on November 1, 2025 by BobK

  • Crazy secure but heavy
Size: 6ft/180cm x 12mm Diameter Chain with Lock
Got this for my son at college to lock his bicycle. Wanted something sturdy to protect an expensive bicycle (aren't they all?) He carrys it like a messenger bag so it is a bit heavy. Overkill for a bicycle but secure.
Reviewed in the United States on January 20, 2026 by Building Things

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