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Elops 520, Bike Chain Lock

Sale price: $34.99 Regular price:

a good length bike lock that lets you attach 2 bikes or your bike around large diameter fixed objects (e.g. trees, posts, railings...)

Color: Select a color
Size: Select a size
Sale price: $34.99 Regular price:

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8399572

Product Videos

Product Features

A photo of the Elops 520, Bike Chain Lock in use

Elops 520, Bike Chain Lock | Our teams have developed this bike chain lock to secure your bike to different shaped attachment options.

a good length bike lock that lets you attach 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: 43.3". Perfect for securing 2 bikes.


2.2 lbs

Questions & Answers

Product Customer Reviews

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1184 Reviews
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Elops 520, Bike Chain Lock,navy blue
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bike lock


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No hurry

This seems sturdy enough. It can be quite fiddly to get the key in the lock.

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Good lock

Lock does the job intended, at a decent price

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Worked for a while then couldn’t unlock

I bought the product around October 2021 and by December it wouldn’t unlock anymore - causing me being unable to use my bike as well as forcing me to buy a new lock

Strong lock, which is long enough for one bike

The lock is long enough to secure a single bicycle to an object. I would not recommend it for two bicycles though (as advertised). The quality appears to be solid, as one would expect from Decathlon. The inside of the lock is a strong chain (and not a cable). Overall, I am happy with the product and its price.

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it locks

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Great lock.

Good quality lock. Light, flexible, secure and strong.

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Good lock - works smoothly

I read all these reviews about these locks being finicky and getting stuck - so before using I sprayed some MO94 generously in the mechanism and it works a charm. Lock has been smooth though the cold season - you just have to push the key a bit to make sure it gets into the mechanism - no fiddling required! Lock is good combo of length and feeling secure while staying relatively light so you can carry it around your shoulder, seatpost or bag, and easily lock two bikes through frame and wheel. The only minus is that this lock (and other Decathlon chain locks) isn't in the 'Sold Secure' catalogue yet - be aware of this if you have bike insurance that requires your lock to be on the catalogue, these won't do... hopefully something Decathlon can arrange in the future, as these locks are great value!


For the price it's really good

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good product

feels solid and long

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Brilliant lock

This lock is brilliant, it's long enough to go around the frame and wheels, and is very reliable/strong.

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This lock actually weighs 1,4kg, quite a lot more than stated. Ce cadenas pèse en fait 1,4kg, beaucoup plus que ce qui est indiqué.

Good and Quality Product

Good and quality

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Hi Kean Voon,

Thank you very much for the 5 star rating for our product. It is very interesting for you to say that you had a wonderful journey at our store; I would equate the journey to having an enjoyable shopping experience. We at Decathlon Petaling Jaya try our best to provide customers an experience unlike at other retail outlets however our ascendance to perfection is a work in progress. If you have any further comments to provide please call us at our hotline at 1800-818-755 or email us at Thank you once again for your patronage and we hope to see you soon.

solid lock

it's very solid, the key is unique, feels very secure

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Hello, Edward Michael.


Thank you for your feedback!


We're very happy that our products and services have met your expectations.


We’d love to continue providing great service to amazing users like you.


We look forward to your next purchase with us.


Stay safe and healthy!


Have a sporty day!


Excellent bike chain

Heavy-duty bike chain. Working as I expected.

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Additional Product Information



  • 100% Polyester cationic


  • 100% Polypropylene


  • 100% Steel


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

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