Shimano XT RD-M8000 11-speed Shadow Plus Rear Derailleur - black/short

Shimano XT RD-M8000 11-speed Shadow Plus Rear Derailleur

Item number: 43938
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The XT rear derailleur RD-M8000 by Shimano - easier to use


The Shimano XT RD-M8000 rear derailleur features a Shadow Plus mechanism that allows you to switch between maximum chain stability and minimum operating forces. The extremely low profile and the flat angle of attack also benefit safety on difficult, narrow trails. In addition, compared to its predecessors, the RD-M8000 knows how to handle a slanted chain better and has larger derailleur pulley teeth for even smoother shifting performance. In the Dyna-Sys11 system, it thus performs its service efficiently and permanently. Both cages of the rear derailleur are made of lightweight aluminium. The shorter version (GS) is compatible with 1x11 and 2x11-speed gears and cassettes up to 46 or 42 teeth. In the long version (SGS) it can also be used for 3x11-speed drivetrains with an 11-40 cassette.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.

Specifications:

Series:
Deore XT M8000
Application:
Cross Country, All Mountain
Gearing:
11-speed
Mount:
standard (Direct Mount compatible)
Capacity:
39 tooth (short), 47 tooth (long)
Compatibility:
Shimano MTB 11-speed
Compatibility - Chains:
HG-X11

Technical Information:

Derailleur Pulleys:
11-tooth
Outer Cage Material:
Aluminium
Inner Cage Material:
Aluminium
Other Materials:
stainless steel, aluminium, composite material (GFRP), steel

Compatibility:

Shifter:
SL-M9000, SL-M8000, SL-M7000-11, SL-M5100
Cassette:
  • short / GS: 1x11-speed: CS-M9001 (11-40 t), CS-M8000, CS-M7000-11 (11-40 t, 11-42 t, 11-46 t), CS-M5100-11 (11-42 t only)
  • long / SGS: 1x11-speed: CS-M9001 (11-40 t), CS-M8000, CS-M7000-11 (11-40 t, 11-42 t, 11-46 t), CS-M5100-11 (11-42 t only)
  • short / GS: 2x11-speed: CS-M8000, CS-M7000-11, CS-M5100-11 (only 11-42 t)
  • long / SGS: 2x11-speed: CS-M8000, CS-M7000-11, CS-M5100-11 (only 11-42 t)
  • long / SGS: 3x11-speed: CS-M9001, CS-M8000, CS-M7000-11 (only 11-40 t)
Chain:
CN-HG901-11, CN-HG701-11, CN-HG601-11, CN-LG500
E-Bike:
STEPS E8080, E7000, E6100, E6180, E5000, E5080

Features:

  • " Rider tuned" for precise, smooth shifting
  • easy shifting with 20% less effort
  • Shadow design with optimised angle of attack
  • improved chain stability
  • efficient shifting and frictionless drivetrain
  • efficient construction of the derailleur pulley teeth
  • painted cage plates
  • 4 pivot bushings, fluorine-coated
  • derailleur pulley bearings sealed

Technology:

Dyna-Sys11
Dyna-Sys11 is the name of the 11-speed shifting system for MTBs from Shimano. The focus lies on maintaining the pedalling rhythm both on flat ground and on uphill segments. The gear ratios are selected so that you make efficient progress in the most frequently used gear range and do not have to shift gears as much (" Rhythm Step" ).

Shadow RD+
Shadow Plus rear derailleurs are just as low-profile as Shimano's Shadow rear derailleurs. In addition, a stabilizer with on/off switch is used to reduce chain slap and thus counteract chain drop. At the same time, this results in a quieter drive. Weight is also saved compared to other chain restraint devices.

Models:

short:
Cage Length:
GS
Max. Largest Sprocket Teeth:
42 with 2x11-speed, 46 with 1x11-speed
Min. Largest Sprocket Teeth:
40-tooth
Max. Smallest Sprocket Teeth:
11-tooth
Min. Smallest Sprocket Teeth:
11-tooth
Max. Chainring Difference:
10-tooth
Total Capacity:
39-tooth
Manufacturer Number:
I-RDM8000GS

long:
Cage Length:
SGS
Max. Largest Sprocket Teeth:
40 with 3x11-speed, 42 with 2x11-speed, 46 with 1x11-speed
Min. Largest Sprocket Teeth:
40-tooth
Max. Smallest Sprocket Teeth:
11-tooth
Min. Smallest Sprocket Teeth:
11-tooth
Max. Chainring Difference:
18-tooth
Total Capacity:
47-tooth
Manufacturer Number:
I-RDM8000SGS

Contents:

  • 1 x Shimano XT RD-M8000 Shadow+ rear derailleur


Weight:

  • black/short: 271 g
  • black/long: 275 g
  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.89 / 5.00

Models:

  • black/short, in stock
    51.92€
  • black/long, in stock
    69.24€

Customer Reviews (31)

4.8

Customer Reviews (31)

4.8/5.0
5
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5
3
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1
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Give us your opinion on this product.

by Ana G. on 13.09.2023
verified purchase
item: black/short

Todo perfecto. Buen precio.

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by Bráulio F. on 03.06.2022
verified purchase
item: black/short

The derailleur is very good. The only less good situation was the delivery time on the island of Madeira. I had to wait over 2 weeks for the product.

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by Stencu C. on 31.10.2018
verified purchase
item: black/long

Very satisfied ! Thank you bike-components!

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by Morten N. on 01.10.2015
verified purchase
item: black/short
1 of 1 customers found this review helpful.

Nice and smooth shifting. Virker som det skal!!!

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