Lasted about 2 months of daily use before something internal sheared off.
No visible rusting under wet weather. I oiled it a bit from time to time, still smooth to insert key. Didnt pick up dirt. Good length, never had issue locking to posts/ bike racks.
The key doesn't come out until it's locked again which got annoying for me.
The sheathing uses hook and loop on the free end which came out easily, exposing the chain, scratching my bike before I sewed it shut.
Something internal sheared off and the lock no longer rotates.
It's likely still a good weather resistant lock, but maybe keep it on the bike rack.
I'm really sorry to hear about your dissatisfactory experience with the Bike Lock 520. If you believe it to be defective, please feel free to reach out to our User Happiness Team in our Singapore Lab Store who will be pleased to assist and resolve your issue as soon as possible. Please chat with us directly here for a resolution!
Digital Sport Leader
Cycling & Roller Sports
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.
Good quality lock. Light, flexible, secure and strong.
Heavy-duty bike chain. Working as I expected.
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!
This seems sturdy enough. It can be quite fiddly to get the key in the lock.
Recommended if you need to keep your expensive bike secured
Thank you for taking the time to write a review on the Bike Chain Lock520. I am glad that this product has been working well for you and that you love it.
At Decathlon, our mission is to make sports accessible for the many. It is our responsibility to ensure that our products are made to satisfy our users.
Feel free to write a review on other Decathlon products and I hope to see you in our store soon!
Sport on safely!
Omni-channel Sports Advisor
The lock is good enough quality. There are two main issues, its too short to fit around many of the posts in Singapore and the lock chain while sturdy in itself is secured with a sheet metal tab inside the lock, would be fairly easy to pull the chain out of the latching mechanism with appropriate tools such as a car jack
Thank you for taking the time to review our products. I am sorry to hear about your less than satisfactory experience with the Bike Chain Lock 520.
We'll bring your feedback to our design team to see how we can improve the length of the lock as well as the security of the lock in our future designs.
Thank you and sport on safely! :)
Skate safe! Skate fast!
Bedok Oxelo Sports Leader