Skip to content
Bikes Condor Brompton Help Components Bike Parts Contact Points Wheels, Rims & Hubs Tyres & Tubes Brompton Components Shop Top Brands Accessories Cycling Essentials Lights Luggage & Bike-Packing Bags Lifestyle Bike Maintenance Tech & Electronics Nutrition Clothing Men's Clothing Women's Clothing Clothing Accessories Shop Top Clothing Brands In-Store Workshop Our Services Visit Us

Bike Derailleurs

A rear derailleur (often referred to as a 'rear mech') is the mechanism that moves the chain from cog-to-cog on the cassette at the rear of the bik...

A rear derailleur (often referred to as a 'rear mech') is the mechanism that moves the chain from cog-to-cog on the cassette at the rear of the bike. A front derailleur (also referred to as the 'front mech') shifts the chain from across the chainrings at the chainset, where your pedals attach. Not all bikes have a front derailleurs and this is known as a one-by or 1x set up. 

£ 140
£ 559
113 products found
Load Previous
Shimano GRX RD-RX400 Rear Mech Sale

Shimano GRX RD-RX400 Rear Mech

£44.99 £64.99

Shimano GRX RD-RX400 Rear Mech

Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world.

£44.99 £64.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Campagnolo Chorus HO 11 Speed Rear Derailleur

Campagnolo Chorus HO 11 Speed Rear Derailleur

£269.99

Campagnolo Chorus HO 11 Speed Rear Derailleur

Campagnolo's Chorus HO Rear Mech features a carbon fibre outer plate and jockey wheel cage and offers you shifting performance that's comparable to their higher spec Record and Super Record models.

£269.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour black
Campagnolo Chorus 11 Speed Front Derailleur Out of stock

Campagnolo Chorus 11 Speed Front Derailleur

£104.99 £109.99

Campagnolo Chorus 11 Speed Front Derailleur

The Chorus front derailleur excels in shifting performance and is comparable to its older siblings Record and Super Record.

£104.99 £109.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour black
Campagnolo Chorus 11 Speed Front Derailleur Out of stock

Campagnolo Chorus 11 Speed Front Derailleur

£89.99 £111.99

Campagnolo Chorus 11 Speed Front Derailleur

The Chorus Front Derailleur is fast, responsive, and precise, and the chain shifts across chainrings with no hesitations.

£89.99 £111.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Campagnolo Ekar 13 Speed Rear Derailleur Sale

Campagnolo Ekar 13 Speed Rear Derailleur

£199.99 £214.99

Campagnolo Ekar 13 Speed Rear Derailleur

The EkarTM Rear Derailleur's all new design has been created specifically for gravel.

£199.99 £214.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Colour black
Shimano Ultegra Di2 RD-R8050 11 Speed Rear Derailleur Out of stock

Shimano Ultegra Di2 RD-R8050 11 Speed Rear Derailleur

£259.99

Shimano Ultegra Di2 RD-R8050 11 Speed Rear Derailleur

With the Ultegra Shadow design with Di2 technology, shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear.

£259.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour grey
Campagnolo Xenon 10-Speed Compact Clamp On Front Derailleur Sale

Campagnolo Xenon 10-Speed Compact Clamp On Front Derailleur

£9.99 £21.99

Campagnolo Xenon 10-Speed Compact Clamp On Front Derailleur

Brand new old stock Campagnolo Xenon 10-Speed Compact front derailleur with clamp on fitment.

£9.99 £21.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Shimano Deore M5120 Rear Derailleur

Shimano Deore M5120 Rear Derailleur

£49.99

Shimano Deore M5120 Rear Derailleur

Deore M5120 Shadow plus 10/11-speed rear derailleur for dependable shifting performance and durability.

£49.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour black
Campagnolo Ekar GT Rear Derailleur Sale

Campagnolo Ekar GT Rear Derailleur

£169.99 £189.99

Campagnolo Ekar GT Rear Derailleur

Designed from scratch to give you optimum performance, the best steering experience and maximum reliability for your gravel, all-road and endurance riding.

£169.99 £189.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Colour black
Campagnolo Super Record EPS 12 Speed Rear Derailleur

Campagnolo Super Record EPS 12 Speed Rear Derailleur

£599.99

Campagnolo Super Record EPS 12 Speed Rear Derailleur

First spotted at the 2019 Tour Down Under, pro riders have been putting Campagnolo's top tier groupset through its paces for the last few months.

£599.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Shimano Altus M370 9 Speed Rear Derailleur

Shimano Altus M370 9 Speed Rear Derailleur

£32.99

Shimano Altus M370 9 Speed Rear Derailleur

Great value Altus rear derailleur offering crisp performance on and off the road.

£32.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour black
Campagnolo Super Record 13 Rear Derailleur

Campagnolo Super Record 13 Rear Derailleur

£649.99

Campagnolo Super Record 13 Rear Derailleur

With a slimmer profile and a new chain path, the rear derailleur provides faster and quieter shifting under all conditions.

£649.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Campagnolo Super Record 13 Front Derailleur

Campagnolo Super Record 13 Front Derailleur

£469.99

Campagnolo Super Record 13 Front Derailleur

The new Super Record 13 front derailleur has been completely redesigned to guarantee top-level performance in terms of shifting speed and precision.

£469.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Campagnolo Super Record 12-Speed Front Derailleur Sale

Campagnolo Super Record 12-Speed Front Derailleur

£164.99 £184.99

Campagnolo Super Record 12-Speed Front Derailleur

The new Super Record 12X2 Speed mechanical front derailleur introduces many new techniques, starting with the leverage systems designed to speed up derailings.

£164.99 £184.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour black
Deda Elementi Dog Fang Chain Protector Sale

Deda Elementi Dog Fang Chain Protector

£9.99 £11.99

Deda Elementi Dog Fang Chain Protector

Dog fang is a classic chain protector.

£9.99 £11.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour black
Shimano 105 RD-R7150 Di2 12 Speed Rear Derailleur Sale

Shimano 105 RD-R7150 Di2 12 Speed Rear Derailleur

£199.99 £274.99

Shimano 105 RD-R7150 Di2 12 Speed Rear Derailleur

Compact design includes an integrated wireless unit, charging, mode switch.

£199.99 £274.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Colour black
Campagnolo Super Record 12-Speed Rear Derailleur

Campagnolo Super Record 12-Speed Rear Derailleur

£399.99

Campagnolo Super Record 12-Speed Rear Derailleur

A connector rod has been added to the new Super Record 12X2 Speed rear derailleur, as well as a unidirectional front rocker arm in carbon fibre that further reduces the weight of the component, lends uniformity to the aesthetics, and magnifies the incredible performance of Campagnolo's signature component.

£399.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour black
Campagnolo Record EPS 11 Speed Rear Derailleur

Campagnolo Record EPS 11 Speed Rear Derailleur

£529.99

Campagnolo Record EPS 11 Speed Rear Derailleur

The rear derailleur represents the pride and joy of the EPS project and encompasses a series of technologies and innovations that allow shifting speed to be optimised and guarantee unprecedented precision.

£529.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Shimano Dura-Ace Di2 12-Speed Front Derailleur

Shimano Dura-Ace Di2 12-Speed Front Derailleur

£399.99

Shimano Dura-Ace Di2 12-Speed Front Derailleur

Shimano’s new Di2 front derailleur's operation is pioneering.

£399.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Shimano FD-R7150 Di2 Front Derailleur 12 Speed Sale

Shimano FD-R7150 Di2 Front Derailleur 12 Speed

£109.99 £149.99

Shimano FD-R7150 Di2 Front Derailleur 12 Speed

Quick and smooth front shifting.

£109.99 £149.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour black
Shimano Altus RDM2000 Rear Derailleur

Shimano Altus RDM2000 Rear Derailleur

£34.99

Shimano Altus RDM2000 Rear Derailleur

Great value off road 9-speed rear derailleur, perfect for riders who are enjoying off road riding for the first time.

£34.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Colour black
Campagnolo Super Record Wireless 12-Speed Rear Derailleur Sale

Campagnolo Super Record Wireless 12-Speed Rear Derailleur

£599.99 £804.99

Campagnolo Super Record Wireless 12-Speed Rear Derailleur

The excellent performance of Campagnolo transmissions.

£599.99 £804.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Campagnolo Super Record EPS 12-Speed Front Derailleur Sale

Campagnolo Super Record EPS 12-Speed Front Derailleur

£474.99 £549.99

Campagnolo Super Record EPS 12-Speed Front Derailleur

The fastest, most precise derailing action available in cycling, Campagnolo's new Super Record 12 Speed front derailleur builds on the successful EPS groupset range.

£474.99 £549.99
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Size
Brompton G Line Chain Catcher

Brompton G Line Chain Catcher

£8.00

Brompton G Line Chain Catcher

Chain Catcher for G Line and G Line Electric Bikes.

£8.00
In Stock. Ready for dispatch, or store pickup. Ready for dispatch, or store pickup. Available for store pickup only. Available for pre-order. Ships when available.
In Stock. Ready to dispatch, or store pickup in days. Ready to dispatch, or store pickup in days. Available for store pickup only. Available for pre-order. Ships when available.
Out Of Stock. Currently unavailable.
Showing 48 of 113
Load More