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Shimano XT M781 10-Speed Rear Derailleur


Shimano XT M781 10-Speed Rear Derailleur

The 10-speed M781 XT rear derailleur sees a re-engineered architecture that provides a smooth, linear feel at the shifter and is remarkably stable despite suspension movement, trail chatter or inevitable cable contamination.

  • Dyna-Sys specific cable-pull for (HG-X) 10-speed mountain drivetrain compatibility
  • Shadow design: low profile shorter pulley cage and bracket to avoid chain-stay and obstacle contact, with direct cable routing and a strong actuation spring
  • Direct mount frame compatible allowing easier removal of rear wheel
  • Top-Normal return spring optimized for RapidFire shifters
  • Wide link parallelogram design increases rigidity and performance
  • 4 fluoric coated link pivot bushings minimized friction
  • Aluminum construction with sealed bearing 11-tooth pulleys
  • 10-speed rear derailleur
  • Low profile design
  • Sealed bearing pulleys
  • XC and Trail rated
  • Weight: 232g
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Fantastic derailleur - Aug 11, 2014

1 2 3 4 5
5 out of 5 stars
Winnipeg, MB

I purchased this derailleur in the spring, and have been abusing it on the road, trails, and in very rocky terrain. I've hit the derailleur multiple times on rocks and trees, to the point of breaking the hanger a month ago. With a new hanger put on, this derailleur still shifts as smooth and cleanly now as it did out of the box. I would recommend this to anyone in need of an affordable 10 speed derailleur.

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Great Shifting Shifts - Jul 23, 2014

1 2 3 4 5
5 out of 5 stars
santa fe, NM

Been using the Shadow m781 XT rear der for the last 6 months and I love it. Quick precise shifts. I have x9 on my other bike and I like the feel of the XT better. It feels smoother and seems to shift faster. And FYI, the other review was wrong about the clutch. There is no clutch on the m781.

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Good shifts, not for abusive riders - Nov 04, 2013

1 2 3
3 out of 5 stars
Hesperia, CA

I used one of these for 4 months. It is now in two pieces. It worked very well for about 2 months, and the Dyna-Sys clutch does work well. It does not work well on cassettes larger than 32 tooth, despite what shimano says. It quickly developed a lot of slop at every pivot, and the pulleys wore to their own unique shape. The cage is so thin, it will snap eventually if you ride hard. If you just xc ride, it is a solid unit. Don't put it on an all-mountain bike. Also, the cable guide rubs the cable on metal, so keep extra cables in your pack if you own this one. The older XT (9speed and earlier) are much better quality. Editor's Note: The M781 XT rear derailleur does not have the Shadow Plus clutch system mentioned in this customers review.

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