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Elops 500, Bike Chain Lock

Sale price: $24.99 Regular price:

Intermediate theft-proof bike lock, with the right length for attaching 2 bikes or your bike around large diameter fixed objects (e.g. trees, posts, railings...)

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Sale price: $24.99 Regular price:

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8399551

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Product Features

A photo of the Elops 500, Bike Chain Lock in use

Elops 500, Bike Chain Lock is designed for Our teams have developed this bike chain lock to secure your bike to different shaped attachment options.

Intermediate theft-proof bike lock, with the right length for attaching 2 bikes or your bike around large diameter fixed objects (e.g. trees, posts, railings...)


Short stops. Security rating: 5/10. Links with a cross-section of 6 mm


Usable length: 27.6". Ideal for securing frame and wheel to a fixed object.


1.9 lbs.

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Elops 500, Bike Chain Lock,base color

Product Customer Reviews

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Elops 500, Bike Chain Lock,base color
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Bike chain lock

It is sturdy and safe though heavy, which is expected. I am satisfied with it.

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Bike chain

Doesn’t scratch my bike. A bit hard to do up. Doubled my security with a D lock tho because my bike Should remain mine.

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Short in length

It’s short in length for decathlon bike, if you lock the front wheel with bike rack and it won’t be enough for frame; same as you lock frame with rack not enough for front wheel.

Hello Song,

Thank you for taking the time to give us this comment. I am sorry to find that our product did not live up to your expectations.

Unfortunately the products you describe are not suitable for the use you want to make of them. We can advise you the following product:

You can return to the store with the item you bought and your invoice to make an exchange, if the product we recommend suits you.

See you soon, have a nice day.

Véronique, Relais Service à la clientèle, Décathlon Centre Eaton

Impossible to unlock after only 4 months

We bought this lock four months ago (August 2020) and it slowly started to be harder and harder to open. Now it is impossible to unlock it anymore and Decathlon won't even try to help. They might only give us a discount on a new lock, while what I would expect would be at least a total refund, since removing the lock will cost us money as well. Very disapointing.

Chain is good & sturdy but the lock is fiddly

Bought this last July and I didn't use my bike much. I locked the bike up in the garden under roof. A couple of months later, the key just wouldn't turn the lock anymore. I ended up having to use heavy duty metal cutter to cut the chain. The pick-proof lock was simply to fiddly. So now it became unusable and I had to buy a new lock.


Bought in October the bike has been locked away and hardly used, this lock is now stuck across two bikes. Mechanism is flimsy. Bolt croppers unable to release the bikes. AVOID!!


just right a little finicky to lock

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Difficult to lock and unlock

Bought this 6 months ago. The lock is very difficult to lock and unlock as the locking mechanism gets stuck. Would not recommend it.

I'm sorry to read that the lock is jammed. It's possible that some debris or grit may have entered the mechanism. Try a good few squirts of WD40  to clear it out  and try again. If the issue persists, please return it to us for a replacement item.
Peter, Cycling Manager, DECATHLON
lock keeps jamming

mechanism seems loose, lock keeps jamming after 1 month. poor quality. chain could be longer.

Thank you for your feedback regarding this lock.
IF you are no satisfied with it, please return it to us for a refund or an exchange.
Peter, Cycling Manager, DECATHLON
saved my bikes more than once

trust inspiring, just the right size, and not overly heavy, while providing adequate security - it has survived multiple attempts to steal my bike with no sign of damage or weakening!

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BTwin 500 chain lock

This chain lock does what it's supposed to well and has been most useful. My only niggle is the its short length, if it could have been six inches longer it would make the lock easier to tie to lampposts for instance. Other than that it's fine.

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Complicated to use

When close the lock you need to insert key. Most locks click in automaticly

Thank you for your feedback regarding this lock. I will forward this on to the team at B'twin who are in charge of this item.
Peter, Cycling Manager, DECATHLON
Quite Secure And Heavy

The material is really heavy and key is also very smooth and secure. A must have accessory for security of your bike.


Very strong

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Great product

Better quality as compare to other locks.

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Additional Product Information



  • 100% Steel


  • 100% Polypropylene

Main fabric - Bottom

  • 100% Polyester cationic


Pick-proof lock. Comes with 3 keys.

Security score

The security rating helps you choose the lock that is most suited to your needs. To accomplish this, B'Twin defined a test protocol jointly with an independent laboratory, CNPP, based on real-life theft techniques. This unique protocol allows each lock to be given a comparable rating indicating how resistant it is to theft. This rating ranges from 0 (least secure) to 10 (most secure).(10 being fully theft-proof)



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

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual