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XTR RD-M9000 Rear Derailleur

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Why We Like The XTR RD-M9000 Rear Derailleur

When we're outfitting our dream race bike, we opt for the best when it comes to mechanical shifting. Shimano’s M9000 XTR Rear Derailleur is the top-of-the-line offering for Shimano's 11-speed mountain bike drivetrains. It's capable of handling cogs up to 46 teeth, and can be set up in 1 x 11, 2 x 11, and 3 x 11 configurations. Compared to the previous generation, Shimano altered the parallelogram of the derailleur a bit for more stable shifting, and also moved the top pulley wheel to allow for greater capacity without resorting to bottoming out the B-screw.


  • Rear derailleur for 11-speed Shimano mountain drivetrains
  • Accommodates a 46-tooth maximum cog size for steep cross-country climbs
  • Shadow RD+ tech with chain-stabilizer switch for control and quieter rolling
  • Long and Medium cage options to set your drivetrain to your specific needs
  • Cage profile decreased by 30mm for better rock clearance
  • Item #SHI003Z
[pivot body] alloy, [pulley cage] carbon fiber
[medium] 37t, [long] 45t
Cassette Range
[medium] 42T (2x11), 46T (1x11), [long] 40T (3x11), 42T (2x11), 46T (1x11)
1 x 11, 2 x 11, 3 x 11
HG-X 11-speed chain
Claimed Weight
[medium] 7.8oz (221g), [long] 8.5oz (242g)
Manufacturer Warranty
3 years
mountain biking

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