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Shimano XTR Shadow Plus RD-M986 Rear Derailleur

$159.99 $199.95

Item # SHI0605 20% Off

5 5

Community Rating | 5 Reviews

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  • One Color, Long Cage ($159.99)
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Item # SHI0605

Description

Stop the slap.

The smooth action of Shimano's XTR Rear Derailleur has always been a contributing factor to XTR's legendary status. But the Shadow Plus RD-M986 packs a new feature that's rewriting drivetrain performance -- a motion damping switch that controls pulley cage fore and aft movement.

This means you can turn on and off the damper via the gold switch located by the upper pulley. with this turned to the on position, the cage resists forward motion to retain tension within the drivetrain. This prevents dropped chains and chain slap. The switch can be fine-tuned as well. An included tool, neatly stored in the derailleur itself, allows you to increase or decrease the amount of tension for varying frame designs and rider preference. This switch builds on the existing M980 Shadow platform.

This means the M986 has the same low-profile geometry that keeps it closer to the dropout and safer from impacts with roots and rocks. Both pulleys now have sealed bearings, and the pulley cage blends a carbon fiber outer with an aluminum inner plate for a just-right combination of light weight, strength, and stiffness. Shimano engineers also changed the return spring so that it works better with full-length cable housing. With the new spring, the XTR Rear Derailleur snaps onto smaller cogs as quickly as you can make the shifts.

You have the choice of a medium cage (GS) or long cage (SGS). The differing lengths of the cages translate into different chainwrap capacities for each version. The GS derailleur is best paired with a 2x10 XTR Crankset. The long cage SGS model has a greater chainwrap capacity, so it will handle the XTR Trail Triple Crank.

The Shimano XTR Shadow Plus Rear Derailleur RD-M986 has a top normal spring configuration, which means that it returns to the top gear when the cable tension is released (which is normal). It's designed to work in harmony with Shimano Dyna-Sys 10-speed Rapidfire shifters and 10-speed cassettes with a maximum 36t large cog.

Tech Specs

Material:
aluminum, steel, carbon
Speeds:
10
Cage Length:
long, medium
Compatible Components:
10-speed Shimano
Recommended Use:
cycling
Actual Weight:
One Color, Long Cage: 216g

Reviews & Community

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Here's what others have to say...

5 5

easy set-up and smooth shifting

  • Familiarity: I've used it several times

shadow+ is worth every penny. reduced chain slap makes a huge difference. shifting is smooth/effortless, almost as good as Di2. paired with XTR shifters, very little install effort, very little fine tuning (just needed to adjust the distance from the cassette).

5 5

Smooth shiftin.

  • Familiarity: I've put it through the wringer

came from SLX on my 29r and XTR non shadow on my 26" so updating the 29R to the XTR with Shadow + has just been the best.. The Shadow+ is well worth it..

Chain slap is pretty nearly eliminated in the trashy rock gardens and I have noticed a smoother shift as well as more immediate shift upon lever movement.. I also run XTR shifters which are the bomb..

So, easy to setup, once adjusted stays that way and works very nicely on my long travel 29r.. 145mm behind.

I have used it for XC, Literally thru the middle of the woods with shrubs, sticks leaves etc etc, small downhill runs, drops 3-4ft and small jumps 3footers with no problems of any kind.

5 5

Shimano is the best

  • Familiarity: I've put it through the wringer

THe XTR M986 is a solid derailleur. The lockout helps big time with chain slap. Smooth shifting all around!

5 5

Excellent Product

Shifts incredibly quickly and smoothly. No regrets. Considering purchasing one for each of my bikes.

5 5

Gold

  • Familiarity: I've put it through the wringer

See that little gold lever? Yeah, that means it's money. XTR is so smooth and quiet. You'll never have an issue with a Shimano drivetrain.