Basket
Basket

Bicycle Rear Derailleurs

609 Item(s)Sort by:Best SellingPrice: Low to HighPrice: High to Low
609 Item(s)

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.


Opinions featured in Bicycle Rear Derailleurs

SRAM EX1 X-Horizon 8-Speed Rear Derailleur Black
Replacement part
Yes replacement for factory part
,
Shimano Tourney TY300 6 / 7-Speed Rear Derailleur
Quality product
Great quality and very reasonable
,
SRAM GX Eagle 12v 52D Rear Derailleur Grey
Excellent service
Excellent service and the product is spot on
,
SRAM GX Eagle 12v 52D Rear Derailleur Grey
Great upgrade
Fitted, adjusted, tested….. perfect
,
SRAM GX Eagle 12v 52D Rear Derailleur Grey
Fair But not sure
Not to sure about the plastic cogs
,
SRAM GX Eagle 12v 52D Rear Derailleur Grey
Much better than the NX
Much better than the NX
,
SRAM GX Eagle 12v 52D Rear Derailleur Grey
Purring like a big cat
I broke my NX derailleur 2 weeks ago and my local bike shop said it was worth upgrading to GX. I wasn't sure but decided to listen to them. Yesterday, I rode my new GX derailleur for the first time and wow what a difference. The GX really feels dialled into the bike more than the NX and really delivers smooth gear changes and power when you need it. Incredible!
,
SRAM GX Eagle 12v 52D Rear Derailleur Grey
Great Service
Highly recommend great service to the UK.
,
Saccon Aluminium Wire Stop 1.6mm (500 units)
Good quality
Does as described
,
Saccon Galvanized Shift Cable 1.2x2030mm (100 units)
Very good price
Recommended
,
Saccon Galvanized Shift Cable 1.2x2030mm (100 units)
Good quality
Would recommed to other people
,
Shimano Claris R2000 8-Speed Rear Derailleur Low Sprocket Max 32 Teeth
Unbelievable quality
Great replacement for my damaged Claris derailleur, great quality, great value, can’t fault this item
,
Shimano RD-M8000 XT Guide/Tension Jockey Wheels
shimano xt quality
Great and simple to add to bike
,
SRAM clamps for control Red 2 pcs.
Good quality
Well made goof fitting parts
,

Popular Bicycle Rear Derailleurs brands: