Shimano XTR RD-M9000 11-speed Shadow Plus Rear Derailleur

The XTR RD-M9000 Rear Derailleur by Shimano - Refined technology

The XTR RD-M9000 rear derailleur has been equipped by Shimano with a shifting mechanism that refines and complements the proven Shadow Plus technology. It is now possible to choose between maximum chain stability and lowest possible operating forces. In addition, compared to previous models, the profile has been flattened again and the angle of attack optimised to prevent damage on the trail. Together with the other components that make up the Dyna-Sys11 system, the RD-M9000 performs reliably and smoothly. The inner cage of the rear derailleur is made of aluminium, the outer one of weight-saving carbon, as is some of the hardware. In the shorter version (GS) it is compatible with 2x11-speed and 1x11-speed gears and cassettes up to 11-42 or 11-46. The long version (SGS) can also be used for 3x11-speed drivetrains with 11-40 cassettes.

Specifications:

Series:

XTR M9000

Application:

Cross Country, All Mountain, Enduro

Gearing:

11-speed

Mount:

standard (Direct Mount compatible)

Capacity:

37 tooth (short), 45 tooth (long)

Compatibility:

Shimano MTB 11-speed

Compatibility - Chains:

HG-X11

Technical Information:

Derailleur Pulleys:

11-tooth

Outer Cage Material:

carbon (CFRP)

Inner Cage Material:

Aluminium

Other Materials:

aluminium, stainless steel, carbon (CFRP)

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

Features:

• Shadow design with optimised angle of attack
• low profile
• low shifting resistance
• easily adjustable chain stabiliser: maximum stability or less shifting effort
• improved derailleur pulley design
• cage plates painted/anodised
• 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:

37-tooth

Manufacturer Number:

I-RDM9000GS

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:

45-tooth

Manufacturer Number:

I-RDM9000SGS

Contents:

• 1 x Shimano XTR RD-M9000 Shadow+ rear derailleur