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Shimano XT SM-RT86 Rotor - 6-Bolt

Stays cooler so you stay in control.

Shimano’s XT Brake Rotor, the SM-RT86, sets itself apart from Shimano’s lower-tier offerings through its use of an aluminum core to transfer heat away from the brake caliper. This, combined with the finned heat sinks in Shimano’s XT and XTR-level brake pads, combats heat-related brake fade. What that means in trail terms is consistent, reliable braking, even on long, technical descents.

  • A workhorse brake rotor for XC, trail, and all-mountain use
  • IceTech steel/aluminum sandwich dissipates heat
  • Aluminum spider further contributes to heat management
  • Reviews
  • Q & A

Great quality Rotors

  • Familiarity: I've put it through the wringer

They stop, they cool fast, they work. Not much more is needed to say. Now if only they came in cool colors like Hope Rotors...

The Only Rotor I Need

    These are great rotors. Stop well, stay cool, and pair perfectly with XT and XTR brakes. Been running these on my bikes for the past 4 years. Very happy with shimano brakes overall.

    Great Rotors

    • Familiarity: I've used it several times

    I bought these rotors to replace the front rotors on me trike. I am 230 lb and the trike is about 45 lb. On a down hill run over 20 MPH It takes a lot of braking power. These the rotors get the job done with out a problem.

    Awesome Rotors

    • Familiarity: I've put it through the wringer

    Awesome design that is very stiff, quiet and quite light. Can't go wrong with these.

    Stops Well

    • Familiarity: I've put it through the wringer

    Easy to install and it stops my bike


      These are a great complement to XT brakes. Their Ice Tech construction readily dissipates heat and staves off brake fade on long descents.

      Brakes they got to feel good

      • Familiarity: I've put it through the wringer

      It's the best feeling to have new rotors and pads. Smooth, firm, quiet braking.

      They are light and they stop

        These are good and regular and reliable🌠


          These rotors are outstanding. I put these on my 2017 Giant Trance 2 and they work great. Incredible stopping power. I have not felt any brake fade with these rotors. You can not beat the price of them either. You can buy two of them from Back country for the price of one at a local bike shop. Very pleased with my purchase.

          Shimano Breaks are awesome

            Shimano is the industry leader in this category. Works perfect every time.

            Brakes just slow you down

            • Familiarity: I've put it through the wringer

            so you might as well have an inexpensive but well working rotors to help out of those OOC situations


              They work really well! Does the trick.

              Brakes are good, m'kay

              • Familiarity: I've put it through the wringer

              If you want your bike to stop, buy Shimano brakes.

              Braking Power

              • Familiarity: I've put it through the wringer

              Love these rotors! They last a long time and work great! Finally had to buy a replacement for my older 2014 bike, so 3 years of abuse seems pretty decent for someone who probably uses her brakes too much! Good price for the quality as well!

              Why are there other rotors?

              • Familiarity: I've put it through the wringer

              This rotor is great. Maybe not quite as fancy as XTR, but also a good bit cheaper. And the heat dissipation is still pretty dang good. I've used a ton of these on my different bikes over the years

              Pretty excited

                I bought these to put on a new build for a Yeti SB6 and am excited for the upgrade from the build of my old SC Bronson. It is the middle of winter here in Park City so it will be a while before I get to reap the benefits of the upgraded build on a new bike, but im excited to get out there soon!

                Great Power to Coolness Ratio

                • Familiarity: I've put it through the wringer

                Cools well without sacrificing braking power.

                Great upgrade

                  If you are looking for a relatively inexpensive upgrade to your cherished ride, look no further. These rotors are an easy self-installation project and you will immediately notice increased stopping power.

                  IceTech IS Worth it!

                  • Familiarity: I've put it through the wringer

                  Hard to beat Shimano brakes on the MTB. Was having problems with the non-IceTech rotors on some of the long descents in Pisgah loosing stopping power and feeling mushy. Simply changing to IceTech rotors fixed my issues instantly. Can't beat that!


                    Ice Tech really avoid over heating