Shimano XTR RD-M9100-SGS

XTR RD-M9100-SGS - the innovative Shimano rear derailleur, designed for the most intense mountain biking experiences

Keeping the winning concept of previous models, Shimano made a further step forward: bigger pulleys, more efficient design and advanced protection.
With introduction of 12-speed transmissions, efficiency become an increasingly emerging feature. That's why Shimano decided to review some components and add more details. Thus, the pulleys replacement, which are now a bit bigger (13 teeth), greatly improves chain management, gear shifting and efficiency on the new 12-speed cassettes. These pulleys don't feature the Narrow Wide profile, although functionality has been improved by the slightly curved design of the cage itself, which allows the longer chain to be handled with the relatively compact cage.
The icing on the cake is the new lower bumper, which is mounted on the outside of the cage to prevent structural damage when the chain is located on the smaller sprockets, or for better protection from trail surprises.


Features

  • Configuration (Long cage): 10-51T, 12S.
  • Configuration (Mid cage): 10-45T, 12S.
  • Improved tension management.
  • New protective bumper on the cage.
  • Larger 13-tooth pulleys with sealed bearings.
  • Chain compatibility: CN-M9100.
  • Profile: Shadow RD.
  • Real weight: 242 g.


Technology

Shimano Shadow RD

The rear derailleur Shimano Shadow RD mechanism is intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur does not hit the chain stay in rough riding conditions. The result is smooth and silent performance.

More information on the packaging of this article.