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10-Speed Bike Rear Derailleur
  • 10-Speed Bike Rear Derailleur
10-Speed Bike Rear Derailleur



10-Speed Bike Rear Derailleur

VAT included
4 reviews
2 of 4 people recommends this product
  • 10-Speed Bike Rear Derailleur
10-Speed Bike Rear Derailleur
Size :
Not available online

Store Availability

Designed for bikes with 10 speeds and a single, double, or triple chainring.



Only compatible with Shimano and B'Twin 10 speed shifters.



Screed length: Length
Maximum teeth: 42 teeth
Min teeth: 11 teeth
Aluminium body


2.3/5 4 reviews
2 of 4 people recommends this product
Florencio (Singapore) Used for 2 to 8 weeks
Precise shifting but on heavy side .
No complain for the price. Use on my mtb 1x10 40t
Response of the brand

Hi Florencio!

Thank you for taking the time to review our products. I am pleased to hear you enjoy using this 10 speed bike rear derailleur.

Your feedback matters as it allows us to further understand how you use our products and services and how we can improve to serve you better. 

We look forward to more of your reviews and sharing! In the meantime, keep sporting on, and we hope to see you in our stores soon!

Stay Healthy, Be Sporty!


Florencio found this answer helpful
So far so good...
Dean (United Kingdom) Used for 2 to 8 weeks Verified purchase What is a "Verified purchase"?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

The label "Verified purchase" let's help you judge the reliability of a review.
Although it feels a little fragile... Good for the price.
Poor quality materials
ben (United Kingdom) Used for 3 to 6 months
The derailleur broke near the hangar bolt whilst riding mid corner. It immediately caught in the chain and cassette causing the back wheel to lock, causing me to crash the bike. I get the bike maintained at Decathlon and the cassette, chain, front and rear derailleur were replaced less than 6 months ago, and I have done no more than 350 miles mostly on road during the lock-down. I see that another customer reported a break in the same place. This item is dangerously under-engineered and should be pulled from the shelves.
Worked with a 13-39 cassette, but the arm broke!
Tony (United Kingdom) Used for 1 week or less
A sudden clean break of the arm next to the hanger bolt when changing between mid-range gears. I was not using great force on the pedals, and there were no signs of anything jamming. Was it metal fatigue?
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