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Rear
Derailleurs

SRAM

eTap Battery

£51.00  
Was  £56.00   | Save  £5.00   (9%)

SRAM

XX1 Eagle AXS 12 Speed Rear Derailleur

£668.00  
Was  £742.00   | Save  £74.00   (10%)
Finance From £13.92/mo

SRAM

XX1 Eagle 12-Speed Rear Derailleur

£273.00  
Was  £303.00   | Save  £30.00   (10%)

SRAM

XX1 11-Speed Rear Derailleur

£273.00  
Was  £303.00   | Save  £30.00   (10%)

SRAM

XX T-Type Eagle AXS Rear Derailleur Cover Kit

£21.00

SRAM

XX T-Type Eagle AXS 12-Speed Rear Derailleur (Battery Not Included)

£626.00  
Was  £695.00   | Save  £69.00   (10%)
Finance From £13.04/mo

SRAM

XX SL/XX/X0 T-Type Eagle AXS Rear Derailleur Inner Cage

£33.00  
Was  £36.00   | Save  £3.00   (8%)

SRAM

XX SL/XX T-Type Eagle AXS Rear Derailleur Setup Key/Cage Lock Assembly Kit With Spring

£14.00  
Was  £15.00   | Save  £1.00   (7%)

SRAM

XX SL T-Type Eagle AXS 12-Speed Rear Derailleur (Battery Not Included)

£626.00  
Was  £695.00   | Save  £69.00   (10%)
Finance From £13.04/mo

Shimano

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

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

Shimano

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

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

Shimano

XTR M9000 Shadow+ 11 Speed Rear Derailleur

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

Shimano

XT T8000 10-Speed Trekking SGS Rear Derailleur

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

Shimano

XT M8050 Di2 Shadow+ 11 Speed Rear Derailleur

£278.99  
Was  £309.99   | Save  £31.00   (10%)
Finance From £6.97/mo

Shimano

XT M8000 Shadow+ 11 Speed Rear Derailleur

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

SRAM

X5 8/9-Speed Rear Derailleur

£43.00  
Was  £47.00   | Save  £4.00   (9%)
Available Sizes

SRAM

X5 10-Speed Rear Derailleur

£50.00  
Was  £55.00   | Save  £5.00   (9%)
Available Sizes

SRAM

X1 11-Speed Rear Derailleur

£196.00  
Was  £217.00   | Save  £21.00   (10%)

SRAM

X01DH 7-Speed Rear Derailleur

£246.00  
Was  £273.00   | Save  £27.00   (10%)
Available Colours

SRAM

X01 Eagle AXS 12-Speed Rear Derailleur (Battery Not Included)

£461.00  
Was  £512.00   | Save  £51.00   (10%)
Finance From £7.68/mo
Available Colours

SRAM

X01 Eagle 12-Speed Rear Derailleur

£223.00  
Was  £247.00   | Save  £24.00   (10%)
Available Colours

SRAM

X01 DH Type 3.0 10-Speed Short Cage Rear Derailleur

£273.00

SRAM

X01 11-Speed Rear Derailleur

£221.00  
Was  £245.00   | Save  £24.00   (10%)

SRAM

X0 T-Type Eagle AXS Rear Derailleur Setup Key/Cage Lock Assembly Kit With Spring

£14.00  
Was  £15.00   | Save  £1.00   (7%)

SRAM

X0 T-Type Eagle AXS 12-Speed Rear Derailleur (Battery Not Included)

£531.00  
Was  £590.00   | Save  £59.00   (10%)
Finance From £11.06/mo

Shimano

Ultegra R8000 11 Speed Rear Derailleur

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

Shimano

Ultegra Di2 R8150 12-Speed Rear Derailleur

£341.99  
Was  £379.99   | Save  £38.00   (10%)
Finance From £7.60/mo

Shimano

Ultegra Di2 R8050 11 Speed Rear Derailleur

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

Shimano

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

£84.99
Available Sizes

Box Components

Two Prime 9-Speed X-Wide Rear Derailleur

£119.99

Shimano

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

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

Shimano

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

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

Box Components

Three Prime 9-Speed X-Wide Rear Derailleur

£84.99

Shimano

T6000 Deore Trekking 10-Speed Rear Derailleur - SGS Long

£56.99
Available Sizes

Shimano

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

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

Shimano

Sora R3000 9-Speed GS Medium Cage Rear Derailleur

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

Shimano

Saint M820 Shadow+ 10 Speed Rear Derailleur

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

SRAM

SX Eagle Aluminum 12-Speed Rear Derailleur

£76.00  
Was  £84.00   | Save  £8.00   (10%)

Shimano

SLX M7000 Shadow+ 11 Speed Rear Derailleur

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

SRAM

Rival22 11-Speed Short Cage Rear Derailleur

£56.00  
Was  £62.00   | Save  £6.00   (10%)

SRAM

Rival22 11-Speed Medium Cage Rear Derailleur

£69.00  
Was  £76.00   | Save  £7.00   (9%)

SRAM

Rival1 11-Speed Rear Derailleur

£118.00  
Was  £131.00   | Save  £13.00   (10%)

SRAM

Rival XPLR eTap AXS D1 12-Speed Rear Derailleur (Battery Not Included)

£270.00  
Was  £300.00   | Save  £30.00   (10%)

SRAM

Rival AXS D1 12-Speed Rear Derailleur (Battery Not Included)

£255.00  
Was  £300.00   | Save  £45.00   (15%)

SRAM

Red eTap AXS D1 12-Speed Rear Derailleur - Max 36T (Battery Not Included)

£610.00  
Was  £677.00   | Save  £67.00   (10%)
Finance From £12.71/mo

SRAM

Red eTap AXS D1 12 Speed Rear Derailleur

£610.00  
Was  £677.00   | Save  £67.00   (10%)
Finance From £12.71/mo

SRAM

Red eTap 11-Speed Rear Derailleur

£529.00  
Was  £587.00   | Save  £58.00   (10%)
Finance From £11.02/mo

SRAM

Red XPLR eTap AXS D1 12-Speed Rear Derailleur (Battery Not Included)

£580.00  
Was  £644.00   | Save  £64.00   (10%)
Finance From £12.08/mo

SRAM

Red AXS XPLR E1 Rear Derailleur Carbon Inner Cage

£62.00

SRAM

Red AXS XPLR E1 1x 13 Speed Rear Derailleur

£700.00
Finance From £14.58/mo

SRAM

Red AXS E1 Rear Derailleur Carbon Inner Cage

£50.00  
Was  £62.00   | Save  £12.00   (19%)

SRAM

Red AXS E1 Limit Screw Set

£25.00  
Was  £30.00   | Save  £5.00   (17%)
Available Sizes

SRAM

Red AXS E1 12 Speed Rear Derailleur

£700.00
Finance From £14.58/mo

SRAM

Red 11-Speed Rear Derailleur

From  £266.00  
Was  £295.00   | Save  £29.00   (10%)

SRAM

Red 10-Speed Wifli Aero Glide Rear Derailleur (Medium Cage)

£277.00  
Was  £307.00   | Save  £30.00   (10%)

SRAM

Rear Derailleur Inner Cage - GX T-Type Eagle AXS

£36.00

SRAM

Rear Derailleur Frame Sleeve B-Bolt

£11.00

SRAM

Rear Derailleur Chaingap Adjustment Gauge - B Gap Tool - Compatible With Eagle 50T/52T

£6.00

Shimano

RX825 GRX Di2 Shadow+ 12 Speed Rear Derailleur (Double Chainring)

£324.99
Finance From £7.22/mo

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.