Shimano XT RD-M786-SGS Rear Derailleur
Best durable upgrade for serious mountain bikers running 10-speed drivetrains.
This workhorse brings legendary shifting precision to 10-speed setups without the fragility of modern, exposed designs. The Shadow profile tucks the derailleur safely away from trail debris, trading a bit of weight for the kind of rugged reliability that keeps you riding when others are stuck with a bent hanger.
$124.99
at
Mike's Bikes
Who it's for
- Aggressive trail riders tackling technical, rocky terrain
- Performance-focused cyclists demanding reliable shifting under pressure
- Mountain bikers navigating tight trails with frequent obstacles
Who should skip it
- Riders seeking the wider gear ratios of modern drivetrains
- Cyclists preferring low-maintenance, set-and-forget equipment
- Owners of non-Dyna-Sys or newer 11-speed drivetrain systems
Performance breakdown
Shift Precision
Crisp, consistent gear changes even under heavy pedaling loads.
Impact Durability
Shadow profile tucks the derailleur safely away from trail obstacles.
Chain Management
Long cage design keeps tension high to prevent annoying chain slap.
Build Quality
Rugged construction stands up to years of aggressive mountain riding.
Installation Ease
Straightforward setup makes tuning and cable routing a simple task.
Drivetrain Versatility
Wide gear range compatibility handles steep climbs and fast descents easily.
Key Specs
Derailleur Position
Rear
Speed Compatibility
10-speed
Mounting Type
Direct-mount
Shifting Type
Mechanical
Max Rear Cog Teeth
36 teeth
Total Capacity
43 teeth
Cage Length
Long
Intended Use
Mountain
Weight
266 grams
Color
Black
Know before you buy
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Ask Metto anything about the Shimano XT RD-M786-SGS Rear Derailleur before you decide.