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Rear
Derailleurs

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Shimano

M8100 XT Shadow+ 12 Speed Rear Derailleur (Single Chainring)

£89.99  
Was  £109.99   | Save  £20.00   (18%)

Shimano

M7100 SLX Shadow+ 12 Speed Rear Derailleur (Single Chainring)

£76.99  
Was  £84.99   | Save  £8.00   (9%)

Shimano

Deore M5100 11-Speed Shadow+ Rear Derailleur

£44.99  
Was  £49.99   | Save  £5.00   (10%)

Shimano

M6100 Deore Shadow+ 12 Speed Rear Derailleur

£58.99  
Was  £64.99   | Save  £6.00   (9%)

Shimano

Deore M4120 10/11-Speed Rear Derailleur

£29.99  
Was  £41.99   | Save  £12.00   (29%)

Shimano

Ultegra R8000 11 Speed Rear Derailleur

From  £80.99  
Was  £89.99   | Save  £9.00   (10%)

Shimano

105 R7000 11 Speed Rear Derailleur

From  £49.99  
Was  £54.99   | Save  £5.00   (9%)

Shimano

Ultegra Di2 R8050 11 Speed Rear Derailleur

£233.99  
Was  £259.99   | Save  £26.00   (10%)

Shimano

Deore RDM592 9-Speed Shadow Rear Derailleur

£49.99  
Was  £54.99   | Save  £5.00   (9%)

Shimano

Altus RD-M310 7/8-Speed Rear Derailleur

£31.99  
Was  £34.99   | Save  £3.00   (9%)

Shimano

RX820 GRX 12-Speed Shadow+ Rear Derailleur (Max 51T Cassette)

£119.99
Available Sizes

Shimano

U8000 CUES Shadow+ 11-Speed Rear Derailleur - GS Medium

£84.99
Available Sizes

Shimano

T6000 Deore Trekking 10-Speed Rear Derailleur - SGS Long

£56.99
Available Sizes

Shimano

RX820 GRX 12-Speed Shadow+ Rear Derailleur (Max 45T Cassette)

£119.99
Available Sizes

Shimano

RX820 GRX 12-Speed Shadow+ Rear Derailleur (Max 36T Cassette)

£119.99

Shimano

R7100 105 12-Speed Rear Derailleur

£59.99

Shimano

M8150 Deore XT 11-Speed Di2 Shadow+ Rear Derailleur - SGS Long

£329.99
Finance From £7.33/mo
Available Sizes

Shimano

CUES 6000 10/11-Speed GS Shadow+ Rear Derailleur

£53.99  
Was  £59.99   | Save  £6.00   (10%)
Available Sizes

Shimano

CUES 8020 11-Speed SGS Shadow+ Rear Derailleur

£84.99
Available Sizes

Shimano

CUES 6020 11-Speed SGS Rear Derailleur

£59.99
Available Sizes

Shimano

CUES 6020 10-Speed SGS Rear Derailleur

£49.99
Available Sizes

Shimano

CUES 4020 9-Speed SGS Rear Derailleur

£39.99
Available Sizes

Shimano

CUES 4000 9-Speed GS Rear Derailleur

£44.99
Available Sizes

Shimano

CUES 3020 9-Speed SGS Rear Derailleur

£34.99
Available Sizes

Shimano

Sora R3000 9-Speed GS Medium Cage Rear Derailleur

£38.99  
Was  £42.99   | Save  £4.00   (9%)

Shimano

Cues U6070 Di2 GS 11-Speed Rear Derailleur

£170.99  
Was  £189.99   | Save  £19.00   (10%)

Shimano

Cues U6050 Di2 GS 10-Speed Rear Derailleur

£134.99  
Was  £149.99   | Save  £15.00   (10%)

Shimano

M5130 Deore Link Glide 10-Speed Shadow+ GS Rear Derailleur

£44.99  
Was  £49.99   | Save  £5.00   (10%)

Shimano

XT T8000 10-Speed Trekking SGS Rear Derailleur

£76.99  
Was  £84.99   | Save  £8.00   (9%)

Shimano

M8100 Deore XT 12spd Shadow+ GS Rear Derailleur

£98.99  
Was  £109.99   | Save  £11.00   (10%)

Shimano

105 Di2 R7150 12-Speed Rear Derailleur

£233.99  
Was  £274.99   | Save  £41.00   (15%)

Shimano

Alivio M3100 9-Speed Shadow SGS Rear Derailleur

£38.99  
Was  £42.99   | Save  £4.00   (9%)

Shimano

Dura-Ace Di2 R9250 12-Speed Rear Derailleur

£629.99  
Was  £699.99   | Save  £70.00   (10%)
Finance From £10.76/mo

Shimano

Deore M6000 10-speed Shadow+ Rear Derailleur

£55.99  
Was  £64.99   | Save  £9.00   (14%)

Shimano

XT M8000 Shadow+ 11 Speed Rear Derailleur

£89.99  
Was  £99.99   | Save  £10.00   (10%)

Shimano

Altus RD-M2000 9-Speed SGS Rear Derailleur

£31.99  
Was  £36.99   | Save  £5.00   (14%)

Shimano

Tiagra RD-4700 10-Speed Rear Derailleur (Medium Cage)

£40.99  
Was  £44.99   | Save  £4.00   (9%)

Shimano

Altus RD-M370 9-Speed SGS Rear Derailleur

£29.99  
Was  £34.99   | Save  £5.00   (14%)

Shimano

Sora RD-R3000 9-Speed Rear Derailleur (Short Cage)

£35.99  
Was  £39.99   | Save  £4.00   (10%)

Shimano

Ultegra Di2 R8150 12-Speed Rear Derailleur

£341.99  
Was  £379.99   | Save  £38.00   (10%)
Finance From £9.35/mo

Shimano

RX817 GRX Di2 Shad+ 11 Speed Rear Derailleur (Single Chainring)

£278.99  
Was  £309.99   | Save  £31.00   (10%)
Finance From £8.58/mo

Shimano

M7120 SLX Shadow+ 12 Speed Rear Derailleur (Double Chainring)

£72.99  
Was  £84.99   | Save  £12.00   (14%)

Shimano

RX400 GRX 10-Speed Shadow+ Rear Derailleur (Long Cage)

£58.99  
Was  £64.99   | Save  £6.00   (9%)

Shimano

Tiagra RD-4700 10-Speed Rear Derailleur (Short Cage)

£33.99  
Was  £39.99   | Save  £6.00   (15%)

Shimano

Deore XT M8130 Link Glide 11-Speed Shadow+ SGS Rear Derailleur

£98.99  
Was  £109.99   | Save  £11.00   (10%)

Shimano

SLX M7000 Shadow+ 11 Speed Rear Derailleur

£69.99  
Was  £76.99   | Save  £7.00   (9%)

Shimano

M8120 XT Shadow+ 12 Speed Rear Derailleur (Double Chainring)

£98.99  
Was  £109.99   | Save  £11.00   (10%)

Shimano

XTR M9100 Shadow+ 12 Speed Rear Derailleur (Single Chainring)

£193.99  
Was  £214.99   | Save  £21.00   (10%)

Shimano

XTR M9120 Shadow+ 12 Speed Rear Derailleur (Double Chainring)

£193.99  
Was  £214.99   | Save  £21.00   (10%)

Shimano

RX810 GRX Shadow+ 11 Speed Rear Derailleur (Double Chainring)

£98.99  
Was  £109.99   | Save  £11.00   (10%)

The Rear Derailleur is the component which shifts the chain on the rear sprocket. Again, there are many different variations and brands of derailleur, with some designed for mountain bike use and some designed for road bike use. Their design however, at a basic level - remains the same, as does their functionality. Deraillerus arew fixed to the bike with a bolt, which secures the derailleur to the derailleur hanger.

Most mountain bikes and road bikes have both a front and rear dearailleuer, but SRAM pioneered a system which is increasingly used, using a 1 x chainring. The rear derailleur has to work incredibly hard during a bike ride, so it’s important that you choose the right derailleur for your bike, and keep your bike's transmission and drivetrain correctly maintained.