Express Delivery
Immediate Dispatch
365 Days to Return
Best price online

Bicycle Rear Derailleurs

+ - brands
729 Item(s)
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 18

Do you want to know more about rear derailleurs?

Derailleurs are one of the most important bicycle components, as they are what allow us to change gears and improve the performance of the bicycle. The rear derailleur moves the chain from sprocket to sprocket on the rear wheel, while the front derailleur changes the position of the chain on the chainrings. This allows you to have a variety of gears to face the different ups and downs of the route.

It is common to have to adjust the front derailleur, since it can often become unadjusted due to bumps, wear or simply because it has been replaced with a new one and this has to be adjusted with tools, because if it is not adjusted properly the gears cannot be changed properly. Badly adjusted derailleurs can be caused by issues such as a faulty chain, an excess of oxide or simply dirt in some part of the cable housing.

The rear derailleur is located in the rear wheel and is somewhat more complicated to adjust than the front derailleur. This system is what moves the chain’s position on the cassette allowing the driving force to be increased or decreased.

In cycling in order for the gears to be changed correctly, as well as adjusting the derailleurs, the gear cable also has to be properly adjusted, since it can become loosened and needs tightened.

Read more Read less

Opinions featured in Bicycle Rear Derailleurs

UNION GH-257 Derailleur Hanger Compatible With Cube
It's the correct part for my bike
Seems strong and works as OEM
P , the 17 December 2019
Tacx 11-Teeth Jockey Wheels with Ceramic Bearings
Solid jockey wheels
I always will recommend this brand
Jens, the 22 May 2019
Shimano Altus 9-Speed Long Cage Rear Derailleur Black
Good quality
Easy to replace and set up got my bike going in minutes
Douglas, the 20 November 2018
40% OFF

40% off in your inbox

Sign up and get up to 40% off thousands of products in your email inbox

+ Legal Information - See less