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Rear Derailleurs

32 results

Rear Derailleurs -commonly known as a Rear Mech. They enable you to shift from one rear sprocket/cog to another effortlessly. It works by a simple cable pulling the rear mech into position as you change gear.

How To Choose - Most bikes will require a rear mech to change gear unless you are riding a single speed bike which will not need one as there are no gears to change into. Bikes will vary in gear speed, for instance your bike may be 9,10 or 11 speed. You will need to choose the right speed rear derailleur to ensure compatibility, this will be stated in the description of the listing. This also applies when choosing the make of your rear mech. If you run shimano shifters you will need a shimano rear mech, cross compatibility can cause problems when shifting.

Cage Length - The length of the cage is determined by how big your gear ratio is on the cassette, or the difference between the front chainrings and the largest gear. The cage helps to keep the tension on the chain consistent. Generally most road bikes with a double chainset and standard cassette will require a short cage, road bikes with a double chainset and a lager ratio cassette will usually take a medium cage. Mountain bikes and triple chainsets will usually need a long or medium cage dependant on the ratio of the cassette. Make sure you check on the listing to what size cassette the derailleur will take. There are always exceptions to the rule so if in doubt contact us and we will be able to help you.

Di2 Rear Derailleurs work in the same way other than it is operated from an electronic cable, therefore eliminating cable stretch, misalignment and provides smoother and more precise shifting. A Di2 rear mech will only work with a Di2 groupset.
Shimano Ultegra RD-6800 Rear Derailleur 28T - 11 Speed
 

Shimano Ultegra RD-6800 Rear Derailleur 28T - 11 Speed

RRP £79.99

Save: 50%

£39.94
Buy Now
SRAM eTap Front or Rear Derailleur Battery
 

SRAM eTap Front or Rear Derailleur Battery

RRP £31.00

Save: 18%

£25.49
Buy Now
Shimano Dura Ace Di2 R9150 Rear Derailleur
 

Shimano Dura Ace Di2 R9150 Rear Derailleur

RRP £549.99

Save: 40%

£331.49
Buy Now
Shimano 105 5800 Bicycle Rear Derailleur
 

Shimano 105 5800 Bicycle Rear Derailleur

RRP £46.99

Save: 46%

£25.49
Buy Now
Campagnolo Chorus 11 Speed HO Rear Derailleur
 

Campagnolo Chorus 11 Speed HO Rear Derailleur

RRP £206.99

Save: 31%

£142.11
Buy Now
Campagnolo Super Record 11 Speed Rear Derailleur - Short Cage
 

Campagnolo Super Record 11 Speed Rear Derailleur - Short Cage

RRP £380.99

Save: 37%

£239.35
Buy Now
Tacx Standard T4090 Bicycle Jockey Wheels - SRAM
 

Tacx Standard T4090 Bicycle Jockey Wheels - SRAM

RRP £9.99

Save: 15%

£8.49
Buy Now
Tacx Standard T4050 Bicycle Jockey Wheels - Shimano
 

Tacx Standard T4050 Bicycle Jockey Wheels - Shimano

RRP £9.99

Save: 15%

£8.49
Buy Now
Campagnolo Record 10 Speed Rear Derailleur - Black
 

Campagnolo Record 10 Speed Rear Derailleur - Black

RRP £255.99

Save: 37%

£161.49
Buy Now
Shimano Di2 SM-BMR1 Battery Mount - External
 

Shimano Di2 SM-BMR1 Battery Mount - External

RRP £79.99

Save: 43%

£45.21
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Shimano Dura-Ace RD-9000 Bicycle Rear Derailleur - 11 Speed
 

Shimano Dura-Ace RD-9000 Bicycle Rear Derailleur - 11 Speed

RRP £179.99

Save: 43%

£101.99
Buy Now
Campagnolo Veloce 10 Speed Rear Derailleur
 

Campagnolo Veloce 10 Speed Rear Derailleur

RRP £73.99

Save: 33%

£49.29
Buy Now
Tacx Ceramic Bearing T4025 Bicycle Jockey Wheels
 

Tacx Ceramic Bearing T4025 Bicycle Jockey Wheels

RRP £29.99

Save: 15%

£25.49
Buy Now
Campagnolo EPS Super Record Rear Derailleur
 

Campagnolo EPS Super Record Rear Derailleur

RRP £625.99

Save: 39%

£382.49
Buy Now
Tacx Stainless Bearing T4060 Bicycle Jockey Wheels - Shimano
 

Tacx Stainless Bearing T4060 Bicycle Jockey Wheels - Shimano

RRP £14.99

Save: 15%

£12.74
Buy Now
Tacx Ceramic Bearing T4065 Bicycle Jockey Wheels - Shimano
 

Tacx Ceramic Bearing T4065 Bicycle Jockey Wheels - Shimano

RRP £29.99

Save: 15%

£25.49
Buy Now
Campagnolo Centaur 11 Speed Rear Derailleur
 

Campagnolo Centaur 11 Speed Rear Derailleur

RRP £63.99

Save: 25%

£47.76
Buy Now
Campagnolo Xenon 9 Speed Rear Derailleur - Black
 

Campagnolo Xenon 9 Speed Rear Derailleur - Black

RRP £37.99

Save: 30%

£26.77
Buy Now
Campagnolo Xenon 10 Speed Rear Derailleur - Black
 

Campagnolo Xenon 10 Speed Rear Derailleur - Black

RRP £37.99

Save: 30%

£26.77
Buy Now
Tacx Stainless Bearing T4020 Bicycle Jockey Wheels
 

Tacx Stainless Bearing T4020 Bicycle Jockey Wheels

RRP £14.99

Save: 15%

£12.74
Buy Now
Shimano Ultegra RD-6800 Rear Derailleur 32T - 11 Speed
 

Shimano Ultegra RD-6800 Rear Derailleur 32T - 11 Speed

RRP £84.99

Save: 44%

£47.59
Buy Now
Campagnolo Veloce 10 Speed Braze-On Front Derailleur
 

Campagnolo Veloce 10 Speed Braze-On Front Derailleur

RRP £24.99

Save: 27%

£18.27
Buy Now
Tacx Ceramic Bearing T4095 Bicycle Jockey Wheels - SRAM
 

Tacx Ceramic Bearing T4095 Bicycle Jockey Wheels - SRAM

RRP £29.99

Save: 15%

£25.49
Buy Now
Campagnolo Chorus EPS 11 Speed Rear Derailleur - Short Cage
 

Campagnolo Chorus EPS 11 Speed Rear Derailleur - Short Cage

RRP £391.99

Save: 37%

£245.64
Buy Now
SRAM Red WiFli Aero Glide Rear Derailleur - 2012
 

SRAM Red WiFli Aero Glide Rear Derailleur - 2012

RRP £251.00

Save: 29%

£178.49
Buy Now
SRAM Force Bicycle Rear Derailleur - 10 Speed
 

SRAM Force Bicycle Rear Derailleur - 10 Speed

RRP £83.00

Save: 35%

£54.22
Buy Now
Campagnolo Record 11 Speed HO Rear Derailleur
 

Campagnolo Record 11 Speed HO Rear Derailleur

RRP £261.99

Save: 27%

£190.48
Buy Now
Campagnolo EPS Record Rear Derailleur
 

Campagnolo EPS Record Rear Derailleur

RRP £503.99

Save: 40%

£303.44
Buy Now
Campagnolo Potenza 11 Speed HO Rear Derailleur
 

Campagnolo Potenza 11 Speed HO Rear Derailleur

RRP £126.99

Save: 28%

£91.62
Buy Now
Campagnolo Super Record 11 Speed HO Rear Derailleur
 

Campagnolo Super Record 11 Speed HO Rear Derailleur

RRP £397.99

Save: 31%

£274.29
Buy Now

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