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Elops 920, Bike D-Lock

Sale price: $39.99 Regular price:

A high-security bike lock that's big enough for 2 bikes at once. Also secures the frame and the wheel.

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Sale price: $39.99 Regular price:

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8331481

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Product Features

A photo of the Elops 920, Bike D-Lock in use

Elops 920, Bike D-Lock | We have developed this bike lock for protecting your bike from thieves. This lock offers an excellent level of security that keeps your bike safe for longer.

A high-security bike lock that's big enough for 2 bikes at once. Also secures the frame and the wheel.


High-security lock. Security level rating: 8/10.


Can be used to secure 2 bikes to a fixed object.

Easy to transport

Universal mount lets you attach the lock to the frame of your bike.

Shock protection

Supple rubber crossbar and U to protect your bike's paint.


3.5 lbs

Product Customer Reviews

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895 Reviews
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Elops 920, Bike D-Lock,black
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Can't attach to a female bike

This lock can't be attached to a bike without a high cross bar. It is also heavy and clunky.

All good

A gift for my son for his bike. So far so good.

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Good lock

Does what it says on the tin, good basic strong lock

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Not compatible with BT'Win Bike ST100

I have received the D-Lock with my Bike order and spent ages trying to find a suitable way to attach the lock to my bike. I picked this lock as you can fix it to your bike whilst it is not in use. But with the break cable on the underside of the frame I have now had to attach it to lower frame. It's not perfect and will need to fix something else to prevent it moving about when cycling. I would've expected the lock to be compatible with BT'Win bikes or at least say which bikes it is not compatible with. Having now read the other reviews I am not the only one. I have opened the packaging - not sure if I can return or exchange the item? I have also order the same lock as I am trying to order my wife the same bike but will likely return that lock and find something more suitable/practical.

Absolutely huge

I bought this to fix to the frame of my new bike on a recommendation from a friend but when it arrived it was much bigger than the frame so wouldn’t fit. It is also very heavy!

Does not fit the bike frame

Sadly, I'll have to return the lock, as it's too big to store when not in use for the Rockrider (small) womens bike. Would be good for Decathlon to have 'related' accessories on the product selection page, that points users in the right direction as to what lock best to get.

Thank you for your feedback regarding the information made available for this bike lock. I would be quite complicated to create some compatibility chart but I think it merits more thoughts as it may well be useful. Providing information such as the external dimensions may be useful and I will ask the team to look into providing this.
If you are not happy with the lock, please feel free to return it to us for a refund or an exchange.


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Useless bike lock! Waste of money

Purchased this lock, and within less than 6 months, the locking mechanism has gone faulty and no longer opens. Does not fit around any pole or bars. Really heavy to transport. Absolute waste of money!

Hi Steven. Thank you for leaving your feedback on the B'twin 920 D- Lock. We offer a 365 day return policy if the product does not meet the intended use and you're also covered for 2 years in case of any faults so please do not hesitate to take the lock back to your local store when it reopens or to contact our Customer Loyalty Team to arrange a refund or exchange.

MICHAEL, Road Cycling Leader, DECATHLON UK

Sturdy, but difficult to mount to bike

I bought this lock alongside a Rockrider ST100 bike and I've had great difficulty getting the bracket onto the frame. It's designed to hang from the top part of the frame, but on my bike the brake cable runs along it so I can't get the strap round. I've had to attach it around the water bottle bolts on the bottom part of the frame, hopefully it stays put. I'm a bit annoyed that the staff sold me incompatible products. Anyway, besides that it's a solid, heavy lock and I'm fairly sure it'll keep the bike safe.

Hello Callum!

We're glad to hear that the lock is sturdy enough for you.

It's unfortunate to hear that you had difficulties attaching it to your bike, but i hope it serves you well over time.

Thank you for taking the time to leave us a positive review.

We hope to see you in store again soon.

Have a great day!

Decathlon Milton Keynes

solid lock

Solid lock and useful frame holder decent size but too big for the rockrider 520 frame in medium.

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The key mechanism seizes up when the temperature goes below freeze and I was unable to unlock the lock. This has happened on three separate occasions. I have now to carry a spare just in case.

Thank you for your comments regarding the lock. It sounds like there is moisture in your mechanism. A strong dose of water dispersant (WD40) will help enormously followed by a glugg of oil. If issues continue, please return it to us for an exchange.
Peter, Cycling Manager, DECATHLON

Bought this lock for my son . Very easy to use cannot see anybody stealing his bike with this lock !

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Looks very strong and sturdy, feeling safe while leaving bike locked. Just the rubber coating makes me annoyed, sometimes it’s hard to put a lock on because of it. However- it prevents from scratching your bike!

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Reliable good quality lock

Thought it was time to review this bike lock, as I've been using it for well over a year now. It was initially a bit annoying fitting the lock to my bike frame, but it comes in handy because I don't want a heavy lock in my backpack. The lock itself seems like it would make life difficult for a thief, but ofcourse even the best locks can be broken. What I really like about this lock and which sets apart from others that I've used is the reliable locking mechanism. Pretty much every other lock I've owned always ends up suffering from jamming issues despite being lubed. I've had no issues with this lock and would recommend.

Works as it should, rubber coating is annoying

The good: This bike lock performs as it should and certainly looks like it would be difficult to break. I use this lock for when I ride into university, and it looks a lot more secure than what a lot of other students use. My bike is £500+, and I am confident that the lock would make it difficult to steal the bike. The average: The lock comes with a carrier, which could be useful however my bike frame (Specialized size L) is too small (amazingly!) to accommodate this particular lock and carrier with a water bottle holder on my bike as well. This means I have to carry the lock in my backpack. The lock also has an integrated dust cover which slides over the keyhole to stop water or dust ingress. This is a handy feature, however I have not found the need to use it just yet, and it adds another step to the daunting task of attaching and detaching the lock from my bike, as described below... The bad: Now then, this lock is incredibly heavy, and the thick rubber coating makes using this lock a daunting and annoying experience. Whilst it does serve to protect paintwork, the rubber coating makes it incredibly difficult to actually place the lock through the frame, wheel, and bicycle park hoop. If the diameter of the rubber coating was to be reduced, it would make things a little easier. I spent ten minutes this morning fighting with the lock trying to fit it through everything, having to use severe force to get everything lined up. As an engineer myself, I find it hard to understand the thought process behind choosing this as a suitable protective coating. The thick rubber coating also limits the types of bike park hoop you can use, with thicker poles being out of the question. Verdict: All in all, this is a very secure lock, however the daily chore of fitting and removing this lock from my bike, bike park hoop and wheel makes it incredibly difficult to recommend this product.

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Additional Product Information



  • 100% Steel


  • 100% Polypropylene

Main section

Tubular shackle made of hardened steel for superior strength and durability. Resistant to bolt cutters, saws and hammers. Supple rubber coating to stop the lock banging against your bike and damaging the paintwork. Inner shackle length: 9.8" (enough to attach 2 bikes).


Pick-proof lock. Rust-proof keyhole cover. Comes with 3 keys.

B'secure certification

The security rating helps you choose the lock that is most suited to your needs. For this reason, B'TWIN defined a test protocol with an independent laboratory, CNPP, based on real-life theft techniques. This unique protocol allows each lock to be given a comparable rating from 0 to 10 indicating how theft resistant it is.



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

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    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual