Shimano SM-RT86 Disc Brake Rotor

The SM-RT86 uses a three-layer 'sandwich' design, placing an aluminum core between two stainless steel outer layers. This aluminum core acts as a heat sink, pulling heat away from the braking surface much faster than solid steel, which helps prevent brake fade on long, steep descents.

Yes, this rotor is compatible with all Shimano pad compounds, including both resin and metallic (sintered) pads. It is designed to perform reliably regardless of your specific pad choice.

This specific model, the SM-RT86, is a 6-bolt rotor. It is designed to mount to standard 6-bolt disc hubs using the included hardware.

The rotor features a specialized cut-out profile that acts like a scraper. As the wheel spins, this design helps clear mud and debris away from the contact surface, ensuring your brakes remain responsive even when the trail gets sloppy.

While the 6-bolt mounting is universal, you must ensure your bike's frame and fork are rated for a 203mm rotor. You will also need the correct post-mount adapter to space your brake caliper out to accommodate the larger diameter.

Yes, the two-piece construction allows for better thermal expansion management. By separating the braking surface from the mounting carrier, the rotor is less prone to warping under extreme heat, resulting in a quieter, more consistent braking experience.