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  • Shimano - XT SM-RT86 Rotor - 6-Bolt - One Color

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  • Shimano - XT SM-RT86 Rotor - 6-Bolt - One Color

Shimano XT SM-RT86 Rotor - 6-Bolt

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    • One Color, 160mm
      sale $31.99
    • One Color, 180mm
      sale $30.98
    • One Color, 203mm
      sale $40.95
    5557

    57 Reviews

    Details

    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
    • Item #SHI001B

    Tech Specs

    Material
    steel, aluminum
    Attachment Type
    6-bolt
    Diameter
    160 mm 180 mm, 203 mm
    Recommended Use
    mountain bike
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Major Upgrade in Stopping Power

      I use these rotors in all things mountain biking, and this time around, I decided to install them on my cross bike... LIKE WHOA!

      Stopping power is up 10 fold this season, and I am kicking myself for not switching to them sooner.

      This is a cheap and simple upgrade, get them NOW!


      Easy DIY

        Get yourself a digital caliper and check width every time you check your chain wear. Shimano prints on disc the min width at 1.5mm.

        Handheld drill + torque wrench make for quick change. Don't forget the loctite. I usually give the hubs a good cleaning before installing new. Check pad wear too!

        Great rotor!

          I bought these to replace the worn out and bent factory Formula rotors my bike came with stock. I've got these rotors paired with EBC's green formula pads and I noticed a huge difference in stopping power over my old rotors the first lever pull! I assume they stay cool enough, I've never bothered to bail off the bike and touch the rotor or bad to see how warm they really are after a long descent, but I've never had brake fade issues with these rotors.

          Great rotor!

          So Icy

          • Familiarity: I've put it through the wringer

          If you're running Shimano brakes and your hubs have a 6-bolt mount, these rotors are the best that Shimano has to offer. Light, sweet looking, and they seem to stay cool enough. Sure the XTR-level rotors get the fancy radiator fins, but then again, most of us probably aren't willing to buy Centerlock hubs for the negligible cooling benefits.

          Still the standard!

          • Familiarity: I've put it through the wringer

          Great performance, priced right and very durable. I tend to be hard on brakes and the XT rotors seem to be able to take more punishment than most. Jonathan gives a great piece of advice in the review below; pay attention to the torque specs! Also, stagger tightening the bolts in a "star" pattern and work up to the torque spec.
          More info here: http://www.shimano.com/media/techdocs/content/cycle/SI/DiskBrakeSystem
          If you need a torque wrench, check out the Park Tool Ratcheting Torque wrench (Accessories /Tools & Maintenance /Tools Tools for the Shop/ Wrenches). Definitely a worth-while investment!
          If you have any questions or for additional information, please feel free to reach out to me directly.

          Ed Kilbourn
          Gearhead - Bike
          Office: 801–736-6396 x4670
          ekilbourn@backcountry.com

          Best Rotors

          • Familiarity: I've put it through the wringer

          Shimano IceTech are the best rotors on the market, especially if you are running Shimano brakes. the heat dispersing tech behind them ensure that your brakes run as needed throughout your ride even after long descents.

          Great price for a great rotor.

          • Familiarity: I've put it through the wringer

          Running these on two bikes right now. My hope rotors were much lighter but developed a shift no matter how tight I made the bolts. So I put these on because I remembered their mounting bolts and clips. No problems so far. Just work.

          great rotors

          • Familiarity: I've put it through the wringer

          No the ice tech rotors but a little cheaper, I am not a EWS pro racer or anything so I went with these because I have ran Ice Tech rotors and couldnt tell the difference. These are solid and of course shimano quality.

          Soo Icey!

          • Familiarity: I've put it through the wringer

          Shimano knows brakes, whether is calipers or rotors - they put out a great product. I've run XT for many years and in my opinion you cant beat it for the price. Their SLX is also a tremendous option. Simple, hassle free and perform at a top notch level!

          Like most of the reviewers, I've seen the light and switched across to Shimano and Ice Tec (on my dually).

          My question is, as I'm running Avid XX brakes on my hard tail, does anyone know if the Shimano XT rotor will (or can be made to) fit Avid XX calipers?

          Appreciate any assistance (preferably beyond the "just ditch your Avids" response!) 😀

          Not sure about the specific body shape on the XX, but I had to file down a small bit of one of the pad retaining bumps on my Avid Elixir R to clear the spider of the 160mm XT rotor. It's a very minor modification (see attached). These rotors with Koolstop porcupads (front) or Jagwire Pro (rear) have at least as good if not better power/feel as the full-XT setup I tried. Seem long-wearing and have been squeal-free, too... Honestly, I've had no issues at all with my Elixirs in 5 years of riding. Tried a few Avid rotors, Ashima (light, scary light), and these XTs... While they add some weight they seem to shrug off the hairy fast 30%-grade-with-90º-bends-at-oak-trees descents over and over again.

          Not sure about the specific body shape on the XX, but I had to file down a small bit of one of the pad retaining bumps on my Avid Elixir R to clear the spider of the 160mm XT rotor. It's a very minor modification (see attached). These rotors with Koolstop porcupads (front) or Jagwire Pro (rear) have at least as good if not better power/feel as the full-XT setup I tried. Seem long-wearing and have been squeal-free, too... Honestly, I've had no issues at all with my Elixirs in 5 years of riding. Tried a few Avid rotors, Ashima (light, scary light), and these XTs... While they add some weight they seem to shrug off the hairy fast 30%-grade-with-90º-bends-at-oak-trees descents over and over again.

          building a santa cruz bronson now, going with the XT breaks and wondering what size rotors i should get? little feed back. I also do mostly trail riding / all mouton. will this break set up be a good choice?

          Has anyone ever used these on avid bb7 mechanical road breaks? If so how are they?

          I just installed a pair of these 203 mm rotors on my tandem equipped with Avid BB mechanical calipers and immediately saw that the inside brake pad tabs were getting in the way. No problem: I just shortened these tabs just enough to leave a clearance of about 2 mm. Improved heat dissipation is important with tandems because of the enormous weight factor (from 300 to 500 pounds!)