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The XTR M9100 series of derailleurs brings a new level of drivetrain silence thanks to decreased tension and an added bumper on the pulley cage.
The XTR M9100 series of derailleurs brings a new level of drivetrain silence thanks to decreased tension and an added bumper on the pulley cage.
Shimano

Shimano XTR RD-M9100 Rear Derailleur 1x12 Long Cage

$330.00
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Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indicative purposes only and can change at any time without notice.

The dates we provide are based on information given by our suppliers. Whenever we get updated information from our suppliers we will endeavor to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for dispatch to you or collection via Click & Collect on Undetermined

Shimano XTR RD-M9100 Rear Derailleur 1x12 Long Cage

Season:2026

Brand:Shimano

Code:IRDM9100SGS

The XTR M9100 series of derailleurs brings a new level of drivetrain silence thanks to decreased tension in the low gear position and an added bumper on the pulley cage.

Larger 13T pulleys increase efficiency and chain management while compatibility with Shimano's new 12-speed cassettes boosts range.

Features:

  • Enhance shifting performance
  • Optimized for new drive system
  • Silent drivetrain
  • Decreased rear derailleur tension at low gear position
  • Add bumper at rear derailleur pulley cage
  • Bigger 13T pulley
  • Low profile design
  • Shimano Shadow RD+
  • 10-51T (12-speed)
Technical Information
  • Series
    XTR
  • Rear speeds
    12
  • Compatible chain
    HG 12-speed
  • RD construction
    SHIMANO SHADOW RD+
  • Mount
    Direct attachment (conventional)
  • Max. front difference
    0T
  • Total capacity
    41T
  • Low sprocket
    Max. 51T, Min. 51T
  • Top sprocket
    Max. 10T, Min. 10T
  • Fluoric coated link bushings
    8
  • Guide pulley bearing
    Sealed bearing
  • Tension pulley bearing
    Sealed bearing
  • Pulley teeth
    13T
  • Sunken type pulley screw
    Yes
  • B-axle
    Hollow axle
  • Average weight
    240g
  • Remarks
    w/Bumper on pully cage
Sizing Information
Professional Opinion
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