Shimano
RT86 6-Bolt Disc Rotor (180mm)
Best reliable upgrade for mountain bikers seeking consistent, controlled stopping power.
Experience reliable stopping power with the Shimano RT86 6-Bolt Disc Rotor. This 180mm rotor is engineered to provide consistent performance and excellent brake modulation, ensuring you have the control you need on any ride. Built with Shimano's renowned quality, it's a crucial component for maintaining the responsiveness and safety of your disc brake system, whether you're navigating city streets or tackling challenging trails. Trust in this high-quality rotor for dependable braking under various conditions.
$64.99
Owner Satisfaction
4.7
/ 5
Category Rank
68
/ 2100
#68 in Components
Price vs Category Average
-37%
Below average
Rotor Diameter
180
/ mm
Who it's for
- Mountain bikers tackling long, steep, and technical descents
- Riders prioritizing consistent stopping power in unpredictable weather
- Cyclists using standard 6-bolt hubs seeking broad compatibility
Who should skip it
- Budget-conscious riders or weight-focused cross-country racers
- Cyclists sensitive to brake noise or vibration during wet rides
- Riders who prefer the durability of metallic brake pads
Performance breakdown
Stopping Power
Consistent bite provides reliable deceleration in both wet and dry conditions.
Heat Dissipation
Ice-Tech construction effectively manages thermal buildup during long, technical descents.
Brake Modulation
Predictable feedback allows for precise speed control on loose or technical terrain.
Installation Ease
Standard six-bolt interface ensures a straightforward setup for most mountain bikes.
Structural Durability
Robust steel and aluminum sandwich design resists warping under heavy braking loads.
Pad Compatibility
Versatile design works seamlessly with both resin and metallic brake pads.
Key Specs
Rotor Diameter
180mm
Mount Type
6-Bolt
Brand
Shimano
Model Number
ESMRT86M2
Features
- Dependable and consistent stopping power
- Optimized for 6-bolt mounting
- Excellent brake modulation control
- Designed for consistent performance
- High-quality Shimano component
- Ensures rider confidence
- Durable construction
What customers say
Riders consistently praise the Shimano RT86 rotor for its exceptional stopping power and reliable modulation, significantly boosting confidence across varied conditions. A key highlight is the effective heat dissipation from the Ice-Tech, which prevents brake fade during long descents and improves component longevity. Installation is straightforward due to the familiar 6-bolt design. While the initial cost is noted, the consensus is that the superior performance and durability provide excellent value. This rotor is celebrated as a dependable, high-quality component that upholds Shimano's engineering reputation, making it a highly recommended upgrade for serious cyclists.
Know before you buy
No, this is a 6-bolt rotor. It is designed specifically for hubs that feature the standard 6-bolt mounting pattern and will not fit Center Lock hubs without an adapter.
You can upgrade to a 180mm rotor, but you will need a disc brake adapter to space your brake caliper correctly to accommodate the larger diameter. Ensure your fork or frame is rated to handle a 180mm rotor before making the switch.
Yes, the Shimano RT86 rotor includes the necessary 6-bolt mounting hardware to attach it to your hub.
Yes, the RT86 is compatible with both resin and metallic brake pads. This versatility allows you to choose the pad compound that best suits your riding style and local trail conditions.
The RT86 features a multi-layer construction designed for better heat dissipation. This helps prevent brake fade during long descents and provides more consistent modulation compared to simpler, solid-steel rotors.
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