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Bicycle Rear Derailleurs

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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

Shimano XT M8100 12-Speed Shadow+ SGS Direct Rear Derailleur
Top quality.
Needed this to replace my broken one.
, the
SRAM replacement kit for X01DH 7V gearbox
Replaces the common fault perfectly
Shame SRAM designed this piece to break so easily but every time it's replaced the bits are top quality
, the
UNION GH-150 Derailleur Hanger Compatible With Cannondale
hanger all ok good product
good produt for the value
, the
Shimano XT M8000 11-Speed Shadow + Direct GS Rear Derailleur
Excellent rear mech
I bought this mech to replace an existing XT mech. This new one has a shorter cage and a far smoother shift when changing gear. Great quality.
, the
SRAM NX 1x11 X-Horizon Long Cage Rear Derailleur Black
Perfect gear quality
High quality derailleur
, the
Shimano XT M8100 12-Speed Shadow+ SGS Direct Rear Derailleur
Great prices
Yea would recommend
, the
Shimano Tourney TY300 6 / 7-Speed Rear Derailleur with Hanger
Supberb quality gearping
great product and a newer upgraded gear changer for a bike
, the
Shimano DEORE M592 Shadow Long Cage 9-Speed Rear Derailleur
good priice
everything perfect
, the
Spare kit SRAM stop screws for change GX1
SRAM best about
High quality
, the
SRAM Sheaves for Derailleurs X01 / X01DH / X1 / GX1 / CX1
SRAM says it all really
High quality
, the
UNION GH-063 Derailleur Hanger Compatible With B'Twin, Decathlon, Rockrider + Other Brands
UNION GH-063 Derailleur Hanger Compatible With B'Twin, Decathlon, Rockrider + Other Brands
did the job
, the
UNION GH-063 Derailleur Hanger Compatible With B'Twin, Decathlon, Rockrider + Other Brands
Excellent
Delivered next day and it is excellent
, the
UNION GH-063 Derailleur Hanger Compatible With B'Twin, Decathlon, Rockrider + Other Brands
Derailleur Hanger
So far so good . Used on one outing and no issues so far
, the
Shimano DEORE M592 Shadow Long Cage 9-Speed Rear Derailleur
Love the shadow profile
Looks great, does the job. Excellent value
, the
Shimano DEORE M592 Shadow Long Cage 9-Speed Rear Derailleur
Great Value
Good quality and a lot cheaper than local shops
, the

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