Shimano Deore XT RD-M781 10 Speed Shadow Rear Derailleur - Black

£77.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
- Deore XT Shadow Dyna-Sys 10-speed rear derailleur delivers reliable and precise shifting with a stiff and lightweight open design
- Shimano's new Direct Mount Rear Derailleur system gives more space around the rear frame dropout resulting in easier rear wheel removal but also allows frame designers to shorten chain stays, increase axle sizes and move suspension pivots
- Direct Mount gives a simpler, cleaner look
- Shadow features a super low profile design that reduces the risk of damage from trail side hazards
- Single tension spring prevents contact with the chainstay resulting in a silent ride
- Direct cable routing prevents snagging from any trail side hazards
- All-alloy construction leads to lower weight
- Four fluorine-coated link pin bushings
- High rigidity wide outer link braces the pulley body
- Strong return spring for a positive shifting feel
- Improved cable pull ratio provides a more accurate shift action
- Dyna-Sys 10-speed compatible only
- Durable sealed bearing pulleys
- Top normal spring uses the spring to select higher gears
Low Sprocket Max: 36T
Low Sprocket Min: 32T
Top Spocket Max: 11T
Top Spocket Min: 11T
Max. Front Difference: 22T
Total Capacity: 43T
Low Sprocket Max: 36T
Low Sprocket Min: 32T
Top Spocket Max: 11T
Top Spocket Min: 11T
Max. Front Difference: 18T
Total Capacity: 35T
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Questions & Answers (4) Q & A
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Questions & Answers (4)
Does this RD-M781 include the RD-M8000 link to attached to a Non direct mount. Older frame. frame?
07 Oct 2021
Thank you for your enquiry, yes it is included as per photo on both GS and SGS versions

WD 07/10/21
Can I use this RD with dura ace 10 speed bar end shifters?
07 Jan 2021
No, this combo won't work- however 10-speed road shifters will work with 9-speed long cage mtb derailleurs.

Thanks 08.01.21
Can this be used on a road bike?
20 Oct 2020
I haver a customer who wants to put the Deore XT range on her road bike. Cassette is 34/11 chainrings 50/34. I know I need the SGS (long cage) I know this is really for MTB, but she's insistent, as she has this set up on her other bike. I'm not so sure the shifting is going to be very good.
No, with road STI levers the shift ratios are different. You can, however, run 10-speed road STI shifters with 9 speed deore nech with a 10 speed mtb cassette.

Hope this helps,

Will This Work With Friction Shifter?
12 Jan 2017
Will this, or any other clutch rear derailleur, work with a shifter in friction mode? Or will the extra tension be too much?

This derailleur you have asked the question on is not actually one of the clutch models, it is the standard non-clutch model. We have never heard of somebody running a friction shifter with a clutch derailleur before and it is not something we have the facility to test so we unfortunately have no way of knowing if this will work or not.