MTB Rear Derailleurs

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Rear Derailleurs (60)

Rear Derailleurs

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Sram

SRAM NX Rear Derailleur 1x11 Long Cage Black

★★★★★

Sold by Alltricks

56,90€

76,00€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Sram

Sram GX 1x11sp Rear Derailleur - Black

★★★★★

Sold by Alltricks

84,90€

125,00€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Options

Cage :

Long

84,90€

In stock

Shimano

Shimano XT M8000 Shadow+ 11 Speed Rear Derailleur - Medium Cage

★★★★★

Sold by Alltricks

68,90€

97,95€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Shimano

Shimano XT M8000 Shadow+ 11 Speed Rear Derailleur - Long Cage

★★★★★

Sold by Alltricks

65,90€

89,99€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Sram

Sram GX 2x10sp Rear Derailleur - Black

★★★★★

Sold by Alltricks

48,90€

71,00€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Options

Cage :

Short

48,90€

In stock

Medium

48,90€

In stock

Long

48,90€

In stock

Sram

Sram GX 1x11sp Rear Derailleur - Red

★★★★★

Sold by Alltricks

83,49€

125,00€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Options

Cage :

Long

83,49€

In stock

Shimano

SHIMANO Rear Derailleur Tourney RD-TY300 6/7V SGS Black (Direct-Mount)

★★★★★

Sold by Alltricks

9,99€

10,99€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Sram

SRAM Rear Derailleur X01 Eagle Type 3.0 12 speed Black

★★★★★

Sold by Alltricks

199,90€

242,00€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

sale

Sram

SRAM X9 Rear Derailleur 9 Speed Black

★★★★★

Sold by Alltricks

44,90€

49,90€ ⁽²⁾

-10%

RRP : 95,90€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Options

Cage :

Short

49,90€

Last on in stock!

Medium

44,90€

In stock

Long

54,99€

Only 2 left in stock!

Shimano

Shimano XT M781 Shadow 10 Speed Rear Derailleur Long Cage Black

★★★★★

Sold by Alltricks

52,90€

75,06€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Shimano

SHIMANO ALTUS 7/8V Rear Derailleur RDM310DL Black

★★★★★

Sold by Alltricks

14,95€

18,99€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Shimano

Shimano XT M781 Shadow 10 Speed Rear Derailleur Medium Cage Black

★★★★★

Sold by Alltricks

52,90€

92,00€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Shimano

SHIMANO Dérailleur Arrière Deore RD592 SGS Noir 9V Chape Longue

★★★★★

Sold by Alltricks

32,90€

50,99€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Sram

Sram X7 9 Speed Rear Derailleur - Grey

★★★★★

Sold by Alltricks

36,90€

59,90€ ⁽¹⁵⁾

Options

Cage :

Long

38,90€

Out of stock

Sram

Sram X1 Type 2.1 11 Speed Rear Derailleur 2015

★★★★★

Sold by Alltricks

149,90€

240,00€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Shimano

Shimano SLX M670 Shadow 10 Speed Rear Derailleur Medium Cage

★★★★★

Sold by Alltricks

32,90€

45,69€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Sram

SRAM XX1 EAGLE Rear Derailleur 12 speed - Gold

★★★★★

Sold by Alltricks

234,90€

306,00€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Shimano

Shimano SLX M7000 Shadow+ 11 Speed Rear Derailleur - Medium Cage

★★★★★

Sold by Alltricks

57,90€

90,99€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Shimano

Shimano Acera M360 7-8 Speed Rear Derailleur Black

★★★★★

Sold by Alltricks

14,99€

21,99€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

Sram

Rear Derailleur XX1 Eagle Type 3.0 12 speed Black

★★★★★

Sold by Alltricks

224,90€

306,00€ ⁽¹⁵⁾

IN STOCK, dispatching tomorrow

MTB Rear Derailleur

A MTB Rear Derailleur or Rear Mech is a part of the drivetrain used to move the chain on each sprocket of the cassette.
It can be sold as part of a complete MTB Groupset or separately.
The derailleur is fixed to the Frame via a derailleur hanger as it is the most exposed part on the bicycle. The derailleur hanger is used to prevent any damage to the frame if a force is applied by a fall or during transport.

The main parts on a rear mech are: a cage, 2 jockey wheels and a complex assembly of springs and other mechanical parts. A MTB Gear Shifter is a must have to operate the derailleur.

There is only two manufacturers available on the market: Shimano and Sram, both available at Alltricks.com

Rear Derailleur Cage Length

MTB Rear Mechs come with different cage length: Short, Medium or Long. A derailleur with a longer cage can accommodate a larger gear range (range of cogs on the Cassette and / or difference between the front chainring sizes).
When replacing a Rear derailleur, we advise you to take the same cage length as your current model.
When you are building a bike from scratch, you will need to calculate the total capacity with the formula:
Total Capacity = (Number of teeth on the largest cassette sprocket - Number of teeth on the smallest cassette sprocket) + (Number of teeth on the biggest Chainring - Number of teeth on the smallest Chainring).

If you still have any doubt, do not hesitate to contact the helpful Alltricks tech team who will be happy to guide you through the many Mountain Bike Rear Mechs available.