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  • Shimano XT M781 Shadow 10 Speed Rear Mech
  • Shimano XT M781 Shadow 10 Speed Rear Mech
NOW$59.99
  • RRP$89.99
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Shimano XT Shadow Rear Mech 10sp M781

Efficiency was the key principle when designing the Shimano Dyna-Sys XT M781 GS 10-speed rear derailleur. The derailleur was designed with a longer swing arm and a tighter spring for crisper shifting when you want it, and less 'ghost shifting' when you don't. The Dyna-Sys rear derailleur will stay in adjustment longer and deliver consistent performance with each ride.

Features:

  • Stronger return spring for crisper shifting
  • Longer swing arm for quicker shifting
  • Less chain-slap
  • Capacity : GS 35T
  • Weight: 234 g

Buy Shimano XT Shadow Rear Mech 10sp M781 from Chain Reaction Cycles, the worlds largest online bicyle store

  • Colour: Black, Silver
  • Size: Medium Cage, Long Cage
  • Speed: 10 Speed
Rated 4.6 out of 5 by 5 reviewers.
Rated 4 out of 5 by Excellent. Great XT quality. Shifts perfectly and a breeze to install (once you've been on Youtube and then found and downloaded the Shimano tech doc). I only gave it 4 stars because of the lack of instructions that came with the mech. I appreciate that most people who are buying this know what they are doing, but I would have expected a little more info. 24 July 2014
Rated 5 out of 5 by Great Rear Derailleur Easy to install, with no large cable guid loop required as on previous generation rears due to the way the shadow models shift. I have a XT T780 on another bike and the shifting seems a bit more precise with the XT M781. It was easy to set up with the XT shifters and I haven't had any problems to date. Great value when you get them on sale at CRC. 10 June 2014
Rated 5 out of 5 by Замечательный переключатель Четкое, уверенное переключение, отличное качество исполнения. При покупке внимательно отнеситесь к длине лапки. Отношение цена/качество отличное. 15 October 2013
Rated 4 out of 5 by Great Derailleur That Does What it Should This derailleur is awesome. I've been riding it hard for 4 months paired with an SLX shifter. Once I got it set (which took a while) I haven't had an issue with. It's very quiet and smooth. Compared to my old X7 derailleur and shifter pair these ones feel much better! Although the shifting isn't quite as snappy the rear derailleur changes are much smoother (this has to do with srams 1:1 and shimano's 2:1 shifting. This is by far the best performing derailleur I've ever owned plus it's fairly compact (I have the GS model), lightweight, and looks pretty good! I give it four stars because I personally wish Shimano would use slightly faster shifting methods kind of like Srams. 27 June 2013
Rated 5 out of 5 by The Best (RUS) После прошлого Shimano RD-M772 этот переключатель был лучшим по всем параметрам, понравилась настройка функции Plus, на расколбасе почти бесшумен. Работает отлично на 8-ми скоростной трансмиссии, хоть и предназначен для 10 скоростной. 13 May 2013
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6 Questions : 6 Answers

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7 months ago
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Answer: 
If the stock Triple Crankset is still be used on this bike then the Long Cage variant would be ideal.

If reverting to a Double Crankset then the Medium Cage is fine.

Stripping it back even further to a Single ring crankset then the Short Cage version would provide the best chain shifting.
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7 months ago
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Age: 45 to 54
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1 year ago
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Answer: 
The M781 is a slightly updated version which is capable of "direct mounting". This means that the bracket axle assembly (the small plate between the main pivot point and the RD hanger - sometimes also called a 'B2' assembly) can be removed, and the main pivot point screwed directly into a swept back RD hanger.

You can read this for more information:
http://www.pinkbike.com/news/Shimano-Officially-Introduces-Direct-Mount-Rear-Derailleurs.html
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1 year ago
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need to replace the XT RD750 derailleur 9 spd on my santa Cruz MTB....will this work???
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Answer: 
No; 10 Speed systems are indexed differently to 9 speed, so this derailleur will not work effectively on a 9 speed setup.
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1 month, 3 weeks ago
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Hi,

i would like to know if the medium Derailleur can handle all gear positions that a 28-40/11*36 gear set can do?
even if i put the highest/lowest gear in front congestion with the lowest
/highest gear in the rear?
thanks,
4 months, 1 week ago
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Answer: 
Im currently running it on a 3*10 about to switch (11-36) and yes it works full range although I don't quite understand why you'd want to go Highest/Lowest on a 2*10 setup
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4 months, 1 week ago
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Hi, I have a Shimano Deore M610 10 speed triple chainset (48.36.26t) and was looking for an XT rear deraileur in black to suit. Would this rear mechanism be suitable? Many thanks
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3 months, 1 week ago
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Answer: 
Yes the Long Cage derailleur would be the ideal cage length to be running for this drivetrain setup.
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3 months, 1 week ago
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Age: 45 to 54
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2 months ago
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Answer: 
Yes, this should be fine to use as a replacement for the M780 you are currently running. If running a 3x10 setup go for the Long Cage version. A 1x or 2x system should be fine to use the Medium Cage.
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