Shimano Deore XT SM-RT86 Disc Brake Rotor
Top Pick
Shimano
Shimano

Shimano Deore XT SM-RT86 Disc Brake Rotor

4.7

Best high-performance rotor for aggressive mountain bikers seeking consistent, fade-free braking.

This rotor excels at managing heat during intense riding, preventing the dreaded brake fade that plagues standard steel options. Its clever multi-layer construction keeps things cool and consistent, making it a reliable upgrade for riders who prioritize stopping power and durability on long, technical descents.

$55.99

In stock

at

The Gear Attic

Diameter Mm 180
Mounting Type 6-Bolt

More Deore XT options

Who it's for

  • Mountain bikers tackling long, steep, and demanding descents
  • Aggressive riders needing components that resist warping and wear
  • Cyclists demanding predictable, fade-resistant stopping power in all conditions

Who should skip it

  • Budget-conscious riders looking for basic, low-cost replacement parts
  • Riders sensitive to brake noise or specific pad compatibility issues
  • Mechanics who frequently swap wheels and prefer tool-free installation

Performance breakdown

Thermal Management

The aluminum core effectively sheds heat during long, aggressive descents.

Excellent

Stopping Consistency

Reliable bite point remains stable even under heavy, sustained braking loads.

Excellent

Mud Shedding

Open blade design clears debris quickly to maintain consistent pad contact.

Excellent

Structural Rigidity

Aluminum spider construction prevents warping and ensures a true, quiet spin.

Excellent

Installation Ease

Standard 6-bolt interface makes swapping rotors a straightforward, tool-friendly process.

Excellent

Pad Compatibility

Versatile surface works seamlessly with both resin and metallic brake pads.

Excellent

Key Specs

Material

Stainless steel and Aluminum

Mounting Type

6-Bolt

Diameter

180mm

Construction

3-layer with aluminum core

Included

Rotor fixing bolts and locking washers

Heat Dissipation

Reduces temperature by ~100°C

Compatibility

Resin and Metallic Pads

Know before you buy

Still have a question?

Ask Metto anything about the Shimano Deore XT SM-RT86 Disc Brake Rotor before you decide.

Shimano Deore XT SM-RT86 Disc Brake Rotor

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