11 Speed Mountain Bike Rear Derailleurs

The rear derailleur is one of the most important parts on the bike and ensures precise, fast and smooth shifting. Shimano and Sram are the leaders in derailleur development. We have rear derailleurs for mountain or trekking bikes designed for 11 speed systems with single, double or triple chainrings. 11 speed rear derailleurs are compatible with 11 speed shifters, generally from the same manufacturer. The length of the derailleur cage determines its ability to handle different sized cassettes.

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IRDM5100SGS
discount -47%
Shimano Deore RD-M5100 SGS 11-speed Rear Derailleur
In stock
Shimano Deore RD-M5100 SGS 11-speed Rear Derailleur

Rear derailleur for 1x11-speed systems, SGS long inner cage, for 11–51 tooth cassettes.

20 reviews
25.99 €
Buy
We recommend
ERDU6000GS
Shimano CUES RD-U6000 GS 10/11sp. Rear Derailleur
In stock
Shimano CUES RD-U6000 GS 10/11sp. Rear Derailleur

10/11-speed MTB/trekking rear derailleur, for 1x10 or 1x11 systems, total capacity – 39 teeth, GS inner cage, largest cog max – 50 teeth.

6 reviews
60.99 €
Buy
We recommend
RDM8000-2
discount -53%
Shimano XT RD-M8000 SGS 11-speed Rear Derailleur Black
In stock
Shimano XT RD-M8000 SGS 11-speed Rear Derailleur Black

Shimano Deore XT RD-M8000 rear derailleur with a long SGS cage, black, weight – 275 g.

16 reviews
55.49 €
Buy
ERDM4120SGS
discount -35%
Shimano Deore RD-M4120 SGS 10/11-speed Rear Derailleur
In stock
Shimano Deore RD-M4120 SGS 10/11-speed Rear Derailleur

Mountain bike rear derailleur for 2x10 (11–42 teeth) and 2x11 (11–42 teeth) systems, SGS long inner cage.

5 reviews
30.99 €
Buy
6811150006032
discount -54%
Shimano Deore RD-M5100 11sp. rear derailleur - Unpacked
In stock New arrival
Shimano Deore RD-M5100 11sp. rear derailleur - Unpacked

Rear derailleur for MTB 1x11 speeds with a Shadow RD+ chain stabilizer for quiet operation and a cassette with a largest sprocket of 51 teeth.

22.49 €
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RDRX815
discount -44%
Shimano GRX Di2 RD-RX815 2x11-speed Rear Derailleur
In stock
Shimano GRX Di2 RD-RX815 2x11-speed Rear Derailleur

Gravel/cyclocross rear derailleur for Shimano 2x11-speed systems with Di2 electronic shifting, for 11–30 to 11–34 tooth cassettes, weight – 288 g.

1 reviews
222.99 €
Buy
RDM8000-1
discount -15%
Shimano XT RD-M8000 GS 11-speed Rear Derailleur Black
In stock
Shimano XT RD-M8000 GS 11-speed Rear Derailleur Black

New Shadow+ design, extremely thin profile.

28 reviews
69.49 €
Buy
ERDU8020SGS
discount -15%
Shimano CUES RD-U8020 SGS 11sp. Rear Derailleur
In stock
Shimano CUES RD-U8020 SGS 11sp. Rear Derailleur

11-speed MTB/trekking rear derailleur for 2x11 systems, total capacity – 48 teeth, SGS inner cage, largest cog max – 45 teeth.

79.99 €
Buy
ERDU602011SGS
discount -33%
Shimano CUES RD-U6020-11 SGS 11sp. Rear Derailleur
In stock
Shimano CUES RD-U6020-11 SGS 11sp. Rear Derailleur

11-speed MTB/trekking rear derailleur for 2x11 systems, total capacity – 48 teeth, SGS inner cage, largest cog max – 45 teeth.

37.99 €
Buy
20098420
discount -33%
Shimano Deore XT Linkglide RD-M8130 SGS 11-speed Rear Derailleur
In stock
Shimano Deore XT Linkglide RD-M8130 SGS 11-speed Rear Derailleur

Shimano XT rear derailleur for 11-speed systems, long inner cage, Linkglide.

80.99 €
Buy
GX103-R
discount -23%
Sram GX 1x11-speed Rear Derailleur Long Inner Cage
In stock
Sram GX 1x11-speed Rear Derailleur Long Inner Cage

11-speed rear derailleur with long inner cage for 10–42-tooth cassettes, Cage Lock button for better rear wheel replacement and installation.

4 reviews
111.99 €
Buy
RDM8050
discount -20%
Shimano XT RD-M8050 GS Di2 Rear Derailleur
In stock
Shimano XT RD-M8050 GS Di2 Rear Derailleur

New Shimano Deore XT RD-M8050 Di2 electronic rear derailleur, GS cage and Shadow RD+ technology.

1 reviews
189.99 €
Buy
RDU602011SGSN
discount -45%
Shimano CUES RD-U6020-11 SGS 11sp. rear derailleur - Unpacked
In stock New arrival
Shimano CUES RD-U6020-11 SGS 11sp. rear derailleur - Unpacked

Rear derailleur for MTB, trekking and e-bikes with 2x11 gearing, Shadow RD and Linkglide for smooth shifting, including with a 45-tooth cassette.

30.99 €
Buy
6821100003111
discount -22%
Sram X0 1x11sp. Type 2.1 rear derailleur carbon black - Unpackaged
In stock
Sram X0 1x11sp. Type 2.1 rear derailleur carbon black - Unpackaged

Rear derailleur for a 1x11 MTB drivetrain for a cassette with a largest sprocket of 42 teeth, with a carbon cage.

139.99 €
Buy
IRDM9250GSA
discount -29%
Shimano XTR RD-M9250 GS Di2 derailleur, direct mount
In stock Free shipping
Shimano XTR RD-M9250 GS Di2 derailleur, direct mount

Shimano XTR RD-M9250 derailleur, short cage, direct mount, suitable for 9-45 cassette.

491.99 €
Buy
IRDU6070GS
discount -49%
Shimano CUES RD-U6070 GS Di2 11sp. Rear Derailleur
In stock
Shimano CUES RD-U6070 GS Di2 11sp. Rear Derailleur

11-speed MTB/trekking rear derailleur, Di2 electronic system, EW-SD300 interface, for 1x11 systems, GS inner cage, largest cog max – 50 teeth, weight – 454 g.

105.99 €
Buy
680443
microSHIFT XLE 11 RD-M66M derailleur 1x11 sp.
In stock
microSHIFT XLE 11 RD-M66M derailleur 1x11 sp.

11-speed derailleur for MTB system by Microshift or Shimano, for a sprocket with a maximum of 40 - 46 teeth.

34.49 €
Buy
RDRX817
Sale -40%
Shimano GRX Di2 RD-RX817 1x11-speed Rear Derailleur
In stock
Shimano GRX Di2 RD-RX817 1x11-speed Rear Derailleur

Gravel/cyclocross rear derailleur for Shimano 1x11-speed system and Di2 electronic shifting, for 11–40 and 11–42 tooth cassettes, weight – 322 g.

1 reviews
224.99 €
Buy
S55524
Sale -22%
Sram GX 2x11-speed Rear Derailleur Medium Inner Cage Black
In stock
Sram GX 2x11-speed Rear Derailleur Medium Inner Cage Black

11-speed rear derailleur for Sram 2x11 systems, a medium-long inner cage that can accommodate a cassette with up to 11–36 teeth.

117.99 €
Buy
GX111
Sale -24%
Sram GX 2x11-speed Rear Derailleur Long Inner Cage Black
In stock
Sram GX 2x11-speed Rear Derailleur Long Inner Cage Black

11-speed rear derailleur for Sram 2x11 systems, a long inner cage that can accommodate a cassette with up to 11–42 teeth.

115.99 €
Buy
M9050GS
Shimano XTR RD-M9050 GS Di2 Rear Derailleur
In stock Free shipping
Shimano XTR RD-M9050 GS Di2 Rear Derailleur

Shimano brings the world's first electronic shifting system specifically for mountain bikes, designated as XTR Di2 M9050.

519.00 €
Buy
7518046
Sale -18%
Sram X1 Type 2.1 Rear Derailleur
In stock
Sram X1 Type 2.1 Rear Derailleur

11-speed long-cage rear derailleur for 11–42-tooth cassettes.

1 reviews
197.99 €
Buy
S55534
discount -21%
Sram NX 1x11-speed Rear Derailleur Long Inner Cage
In 2-3 days
Sram NX 1x11-speed Rear Derailleur Long Inner Cage

An 11-speed rear derailleur at an affordable price, ideal for single-chainring bikes with X-actuation technology.

8 reviews
69.49 €
Buy
55493
discount -11%
Sram X01 Type 2.1 Rear Derailleur Red
In 3-4 days
Sram X01 Type 2.1 Rear Derailleur Red

11-speed rear derailleur with a long cage plate for 11–42-tooth cassettes, 12-tooth X-Sync pulleys, a Cage Lock lever, industrial bearings.

242.99 €
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