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Rear Derailleurs

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Area of use

  • All-round / Beginner 30
  • Gravel 28
  • Marathon / XC 27
  • Tour / Cross Country 27
  • Endurance 26
  • All Mountain / Trail 25
  • Enduro 25
  • Road 25
  • Commuting 24
  • Cyclocross 24
  • Everyday Cycling 24
  • Cross 18
  • Lifestyle / Single Speed 18
  • Trekking 18
  • Urban Sports 18
  • Bike Travel 16
  • Aero 10
  • Bikepacking 10
  • Triathlon 10
  • Cargo 6
  • Dirt 2
  • Downhill / Freeride 2

Number of Gears

  • 10-speed 13
  • 11-speed 27
  • 12-fold 11
  • 13 Speed 1
  • 6-speed 7
  • 7-speed 16
  • 8-speed 9
  • 9-speed 11

Build

  • long 34
  • middle length 28
  • short 17

Assembly

  • axle mount 7
  • frame mount 72

Series

  • Campagnolo Ekar 1
  • Campagnolo Veloce 1
  • FSA K-Force WE 1
  • Shimano 105 2
  • Shimano Acera (MTB) 2
  • Shimano Acera (Trekking) 2
  • Shimano Alivio (MTB) 2
  • Shimano Alivio (Trekking) 1
  • Shimano Altus 2
  • Shimano Claris 1
  • Shimano Deore (MTB) 7
  • Shimano Deore (Trekking) 1
  • Shimano Deore XT (MTB) 5
  • Shimano Deore XT (Trekking) 1
  • Shimano Dura-Ace 2
  • Shimano GRX 4
  • Shimano Saint 1
  • Shimano SLX 1
  • Shimano Sora 2
  • Shimano Tiagra 1
  • Shimano Tourney 11
  • Shimano Ultegra 6
  • Shimano XTR 4
  • Shimano Zee 1
  • SRAM Apex 1 1
  • SRAM GX Eagle 2
  • SRAM NX 1
  • SRAM RED 1
  • SRAM RED AXS 1
  • SRAM RED eTAP 1
  • SRAM X01 Eagle AXS 1
  • SRAM X5 1
  • SRAM XPLR 2
  • SRAM XX1 Eagle 1
  • SRAM XX1 Eagle AXS 1

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Shimano ULTEGRA RD-R8000 Rear Derailleur 11-speed medium length
Shimano ULTEGRA RD-R8000 Rear Derailleur 11-speed medium length
Shimano
ULTEGRA RD-R8000 Rear Derailleur 11-speed medium length
£103.99
free shipping
Shimano Alivio RD-M3100 Rear Derailleur 9-speed black
Shimano Alivio RD-M3100 Rear Derailleur 9-speed black black
Shimano
Alivio RD-M3100 Rear Derailleur 9-speed black
£28.99
Shimano Deore XT RD-M8000 Rear Derailleur 11-speed black
Shimano Deore XT RD-M8000 Rear Derailleur 11-speed black black
Shimano
Deore XT RD-M8000 Rear Derailleur 11-speed black
£103.99 £96.99
  • Versions: mid cageLong Cage
Shimano GRX RD-RX810 Rear Derailleur 11-speed Direct Mount black
Shimano GRX RD-RX810 Rear Derailleur 11-speed Direct Mount black black
Shimano
GRX RD-RX810 Rear Derailleur 11-speed Direct Mount black
£114.99 £106.99
free shipping
Shimano GRX Di2 RD-RX815 Rear Derailleur 11-speed Direct Mount black
Shimano GRX Di2 RD-RX815 Rear Derailleur 11-speed Direct Mount black black
Shimano
GRX Di2 RD-RX815 Rear Derailleur 11-speed Direct Mount black
£292.99 £271.99
free shipping
SRAM GX Eagle AXS Rear Derailleur 12-speed 52T lunar
SRAM GX Eagle AXS Rear Derailleur 12-speed 52T lunar lunar
SRAM
GX Eagle AXS Rear Derailleur 12-speed 52T lunar
£342.00 £324.99
free shipping
Shimano Tourney RD-TY500 Rear Derailleur Direct Mount 6/7 speed
Shimano Tourney RD-TY500 Rear Derailleur Direct Mount 6/7 speed
Shimano
Tourney RD-TY500 Rear Derailleur Direct Mount 6/7 speed
£9.69
Shimano Acera RD-M360 Rear Derailleur black
Shimano Acera RD-M360 Rear Derailleur black black
Shimano
Acera RD-M360 Rear Derailleur black
£24.99 £22.99
SRAM X4 Rear Derailleur 8-speed long cage black
SRAM X4 Rear Derailleur 8-speed long cage black black
SRAM
X4 Rear Derailleur 8-speed long cage black
£22.99 £21.99
Shimano Tourney RD-TY200 Rear Derailleur 6/7-speed Long
Shimano Tourney RD-TY200 Rear Derailleur 6/7-speed Long
Shimano
Tourney RD-TY200 Rear Derailleur 6/7-speed Long
£12.99
Shimano Tourney RD-TY300 Rear Derailleur 6/7-speed, Direct mounting black
Shimano Tourney RD-TY300 Rear Derailleur 6/7-speed, Direct mounting black black
Shimano
Tourney RD-TY300 Rear Derailleur 6/7-speed, Direct mounting black
£12.99
Shimano Tourney RD-TY300 Rear Derailleur 6/7-speed with adapter black
Shimano Tourney RD-TY300 Rear Derailleur 6/7-speed with adapter black black
Shimano
Tourney RD-TY300 Rear Derailleur 6/7-speed with adapter black
£12.99
Shimano Claris RD-R2000 Rear Derailleur 8-speed grey
Shimano Claris RD-R2000 Rear Derailleur 8-speed grey grey
Shimano
Claris RD-R2000 Rear Derailleur 8-speed grey
From £21.99
  • Versions: mediumShort
Shimano Tourney RD-TY200 Rear Derailleur 6/7-speed Short
Shimano Tourney RD-TY200 Rear Derailleur 6/7-speed Short
Shimano
Tourney RD-TY200 Rear Derailleur 6/7-speed Short
£12.99
SRAM X3 Rear Derailleur 7 - / 8-speed long cage black
SRAM X3 Rear Derailleur 7 - / 8-speed long cage black black
SRAM
X3 Rear Derailleur 7 - / 8-speed long cage black
£17.99
Shimano Altus RD-M310 Rear Derailleur 7/8-speed medium length black
Shimano Altus RD-M310 Rear Derailleur 7/8-speed medium length black black
Shimano
Altus RD-M310 Rear Derailleur 7/8-speed medium length black
£22.99 £20.99
  • Versions: mid cage
Shimano Tourney RD-TY200 Rear Derailleur 6/7-speed Long DM
Shimano Tourney RD-TY200 Rear Derailleur 6/7-speed Long DM
Shimano
Tourney RD-TY200 Rear Derailleur 6/7-speed Long DM
£12.99
Shimano Acera RD-M360 Rear Derailleur silver
Shimano Acera RD-M360 Rear Derailleur silver silver
Shimano
Acera RD-M360 Rear Derailleur silver
£23.99
Shimano Tourney RD-TY500 Rear Derailleur with adaptor 6/7 speed
Shimano Tourney RD-TY500 Rear Derailleur with adaptor 6/7 speed
Shimano
Tourney RD-TY500 Rear Derailleur with adaptor 6/7 speed
£9.69
Shimano Altus RD-M310 Rear Derailleur 7/8-speed medium length silver
Shimano Altus RD-M310 Rear Derailleur 7/8-speed medium length silver silver
Shimano
Altus RD-M310 Rear Derailleur 7/8-speed medium length silver
£22.99 £20.99
  • Versions: mid cage
Shimano Sora RD-R3000 Rear Derailleur 9-Speed/Medium Length black
Shimano Sora RD-R3000 Rear Derailleur 9-Speed/Medium Length black black
Shimano
Sora RD-R3000 Rear Derailleur 9-Speed/Medium Length black
£41.99 £38.99
Shimano Tourney TX RD-TX800 Rear Derailleur 7/8-speed black
Shimano Tourney TX RD-TX800 Rear Derailleur 7/8-speed black black
Shimano
Tourney TX RD-TX800 Rear Derailleur 7/8-speed black
£18.99
Shimano Deore Trekking RD-T6000 SHADOW Rear Derailleur 10-speed long black
Shimano Deore Trekking RD-T6000 SHADOW Rear Derailleur 10-speed long black black
Shimano
Deore Trekking RD-T6000 SHADOW Rear Derailleur 10-speed long black
£50.99
Shimano Acera RD-T3000 Rear Derailleur 9-speed black
Shimano Acera RD-T3000 Rear Derailleur 9-speed black black
Shimano
Acera RD-T3000 Rear Derailleur 9-speed black
£30.99 £28.99
SRAM X5 Rear Derailleur 9-speed black
SRAM X5 Rear Derailleur 9-speed black black
SRAM
X5 Rear Derailleur 9-speed black
£43.00 £40.99
  • Versions: Long Cagemid cage
Shimano Sora RD-R3000 Rear Derailleur 9-Speed/Short black
Shimano Sora RD-R3000 Rear Derailleur 9-Speed/Short black black
Shimano
Sora RD-R3000 Rear Derailleur 9-Speed/Short black
£37.99 £34.99
Shimano Tourney TX RD-TX800 Rear Derailleur 7/8-speed silver
Shimano Tourney TX RD-TX800 Rear Derailleur 7/8-speed silver silver
Shimano
Tourney TX RD-TX800 Rear Derailleur 7/8-speed silver
£18.99
SRAM NX X-Horizon Rear Derailleur 11-speed black
SRAM NX X-Horizon Rear Derailleur 11-speed black black
SRAM
NX X-Horizon Rear Derailleur 11-speed black
£72.99 £68.99
Shimano Deore RD-M5100 Rear Derailleur 1x11-speed
Shimano Deore RD-M5100 Rear Derailleur 1x11-speed
Shimano
Deore RD-M5100 Rear Derailleur 1x11-speed
£43.99
Shimano RD-R7000 Shadow Rear Derailleur 11-speed GS Direct black
Shimano RD-R7000 Shadow Rear Derailleur 11-speed GS Direct black black
Shimano
RD-R7000 Shadow Rear Derailleur 11-speed GS Direct black
£63.99 £59.99
Shimano Deore RD-M5120 Rear Derailleur 10/11-speed
Shimano Deore RD-M5120 Rear Derailleur 10/11-speed
Shimano
Deore RD-M5120 Rear Derailleur 10/11-speed
£39.99
Shimano RD-5701 Rear Derailleur black
Shimano RD-5701 Rear Derailleur black black
Shimano
RD-5701 Rear Derailleur black
From £47.99
  • Versions: medium Long Cage, 11-32TShort Cage, 11-30T
Shimano Tiagra RD-4700 Rear Derailleur 10-speed grey
Shimano Tiagra RD-4700 Rear Derailleur 10-speed grey grey
Shimano
Tiagra RD-4700 Rear Derailleur 10-speed grey
£38.99 From £35.99
  • Versions: mediumShort
Shimano Alivio RD-T4000 Rear Derailleur 9-speed black
Shimano Alivio RD-T4000 Rear Derailleur 9-speed black black
Shimano
Alivio RD-T4000 Rear Derailleur 9-speed black
£32.99 £30.99
SRAM Apex 1 Rear Derailleur long cage 11-speed black
SRAM Apex 1 Rear Derailleur long cage 11-speed black black
SRAM
Apex 1 Rear Derailleur long cage 11-speed black
£72.99
Shimano ZEE RD-M640 Rear Derailleur black
Shimano ZEE RD-M640 Rear Derailleur black black
Shimano
ZEE RD-M640 Rear Derailleur black
£70.99 £65.99
  • Versions: Short Cage, SSC: 11-23/11-28TShort Cage, SSW: 11-32/11-36T
Shimano Deore XT RD-M781 Rear Derailleur black
Shimano Deore XT RD-M781 Rear Derailleur black black
Shimano
Deore XT RD-M781 Rear Derailleur black
£77.99 £72.99
  • Versions: medium Long Cage, 11-36TLong Cage 11-36T
Shimano GRX RD-RX400 Rear Derailleur 10-speed Direct Mount black
Shimano GRX RD-RX400 Rear Derailleur 10-speed Direct Mount black black
Shimano
GRX RD-RX400 Rear Derailleur 10-speed Direct Mount black
£59.99 £55.99
Shimano Deore XT RD-M786 Rear Derailleur black
Shimano Deore XT RD-M786 Rear Derailleur black black
Shimano
Deore XT RD-M786 Rear Derailleur black
£79.99 From £73.99
  • Versions: medium Long Cage, 11-36TLong Cage 11-36T
Shimano Ultegra RX RD-RX800 Rear Derailleur 11x Shadow Plus GS Direct
Shimano Ultegra RX RD-RX800 Rear Derailleur 11x Shadow Plus GS Direct
Shimano
Ultegra RX RD-RX800 Rear Derailleur 11x Shadow Plus GS Direct
£121.99 £112.99
free shipping
Shimano Acera RD-T3000 Rear Derailleur 9-speed silver
Shimano Acera RD-T3000 Rear Derailleur 9-speed silver silver
Shimano
Acera RD-T3000 Rear Derailleur 9-speed silver
£30.99
Shimano Deore XT RD-M8100 Rear Derailleur 12-speed Direct Mount Long black
Shimano Deore XT RD-M8100 Rear Derailleur 12-speed Direct Mount Long black black
Shimano
Deore XT RD-M8100 Rear Derailleur 12-speed Direct Mount Long black
£115.99 £107.99
free shipping
Shimano Deore RD-M591 Rear Derailleur silver
Shimano Deore RD-M591 Rear Derailleur silver silver
Shimano
Deore RD-M591 Rear Derailleur silver
£42.99
  • Versions: Long Cage
Shimano Deore RD-M4120 Rear Derailleur 10/11-speed
Shimano Deore RD-M4120 Rear Derailleur 10/11-speed
Shimano
Deore RD-M4120 Rear Derailleur 10/11-speed
£36.99
Shimano SLX RD-M7000 SHADOW+ Rear Derailleur 11-speed black
Shimano SLX RD-M7000 SHADOW+ Rear Derailleur 11-speed black black
Shimano
SLX RD-M7000 SHADOW+ Rear Derailleur 11-speed black
£72.99 £67.99
Shimano Tourney RD-A070 Rear Derailleur 7-speed black
Shimano Tourney RD-A070 Rear Derailleur 7-speed black black
Shimano
Tourney RD-A070 Rear Derailleur 7-speed black
£15.99
Shimano Ultegra Di2 RD-R8050 SHADOW Rear Derailleur 11-speed Medium
Shimano Ultegra Di2 RD-R8050 SHADOW Rear Derailleur 11-speed Medium
Shimano
Ultegra Di2 RD-R8050 SHADOW Rear Derailleur 11-speed Medium
£293.99 £272.99
free shipping
Shimano Deore RD-M591 Rear Derailleur black
Shimano Deore RD-M591 Rear Derailleur black black
Shimano
Deore RD-M591 Rear Derailleur black
£58.99 £54.99
  • Versions: Long Cage

Rear Derailleurs

Something often overlooked in bike maintenance are the rear derailleurs. In fact, some of you might not know what these are. In short, the rear derailleurs are the mechanisms that move the chain at the back end of the sprockets. There are a wide variety of different models but most of them have the same basic design and way of functioning.

 Rear Derailleur

It's important to note that the front and rear derailleurs have different purposes, and should not be mixed up. While the rear has a more specific job to hold and carefully guide the chain, the front is not so important. Essentially, the front derailleur uses two plates to push the chain sideways.

At Bikester, we have a number of different bike rear derailleurs to make sure that you can get the one to match what you need.

Changing rear derailleurs

You might not think that a rear derailleur will need replacing but, actually, this happens on a regular basis. It does wear relatively quickly especially after prolonged use. When it starts to wear, it will begin to move at the pivot points. This means that it won't be keeping your bike chain in place in the way it should. Subsequently, this will begin to affect the performance of your bike.

Riding rough

If you plan to ride on a rough road, then you need to have a rear derailleur that can withstand a lot of abuse.

Shimano rear derailleurs are designed for just that purpose. The GRX has been designed with gravel riding in mind. For example, it has adjustable chain stabilisation, which prevents the chain from jumping out of the chain line, something that is more likely to happen over rougher terrain. Additionally, there's an option to turn an adapter on in order to adapt to the terrain at hand. The rear derailleur also has shifting tension that’s smooth and reliable even when on rough ground. It's also compatible with a wide range of different road bikes.

More gears

Sram is another top brand available at Bikester. The Sram rear derailleurs have been carefully designed to do one job, and do it well. The AXS rear derailleur from Sram is very smart and can actually protect itself due to the robust overload clutch. It also has 12 gears so that you can change up and down easily no matter the terrain or type of biking you are doing. It's also super easy to install thanks to the Cage lock technology.

Extras for your chains

It's all well and good to have an excellent rear derailleur, but you will need some other gear accessories too. Protecting your chain is an important thing as well, so with that in mind, we have a range of chain guards available. These can help to prevent your chain from jumping out, but also stops debris from clogging it up or damaging the rear derailleurs while you're on rougher or muddier rides.

Check out all the options we have at Bikester to get your bike running smoothly.