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Shimano XT SM-RT86 6 Bolt Ice-Tech Rotor

Item #: BR257L00
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Shimano XT SM-RT86 6 Bolt Ice-Tech Rotor

Shimano XT SM-RT86 6 Bolt Ice-Tech Rotor

With riding styles growing more aggressive and varied, a better brake rotor was needed. Shimano responded to the needs of riders to deliver best-in-class braking power, better system cooling and the best brake feel. Enter the Ice-Tech Rotor.

The XT RT86 rotor is infused with proven Ice-Tech braking technology, trickled down from the top-end XTR group. Ice-Tech is a technology that blends the durabiity of a stopping power of a steel rotor with the heat dissipation properties of aluminum. By sandwiching an Aluminum cooling core between two steel braking surfaces, the rotor dissipates heat faster, while the steel outer portion provides solid stopping power and a durable braking surface. The two-piece "floating" rotor arrangement also saves weight and increases system stiffness, giving you the intense braking power you need, with the reliability and survivability that Shimano is best known for. Hit every line with confidence and speed with XT Rotors!

  • For standard 6-Bolt disc brake hubs.
  • Ice-Tech Technology for maximum cooling
  • Two-piece floating rotor
  • Available in 160mm, 180mm and 203mm diameters. Choose the size that matches your existing rotors, or size up for more stopping power (appropriate brake adaptor will be required).
  • Includes T25 Torx mounting bolts, adaptors not included.
  • Sold Singly
  • Compatible with most disc brakes, but strongly recommended for use with Shimano brakes and brake pads
  • Weight:
  • 160mm: 113g
  • 180mm: 130g
  • 203mm: 166g
  • Mounting Hardware: 15g
4.8 / 5.0
336 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Great rotors
Great rotors! Upgraded to these with me my ZEE brakes and they work great. Stopping power at its best .

PROS: Durable, Easy To Install, Lightweight

November 16, 2014
Covina, Ca
Great stopping power, looks great too.
I bought this to complete my build on a yeti SB-66. This rotor is huge, and has plenty of stopping power. I have XT brakes, and this worked great with them. I haven't experienced any fade at all, even during heavy, repeated braking. Shimano engineered the ice-tech rotors with an aluminum core which will dissipate heat better.

PROS: Easy To Install, Lightweight, Attractive Design, Durable
November 29, 2014
Does Exactly What it Says
These rotors keep cool under the highest braking conditions. Never once Have I noticed any sort of brake fade. I love that it is a two piece rotor!

PROS: Attractive Design, Lightweight, Easy To Install, Keeps Brakes Cool

BEST USES: Mountain Biking, Racing, Downhill
November 5, 2014
Southern Oregon
Awesome rotor.
Doesn't get much better than Shimano's Ice Tech stuff. Technology meets attractive and lightweight design. Would work great in any brake system where applicable. I bought the 203 version for my Yeti SB66. Powerful stopping and no fade even on long descents.

PROS: Attractive Design, Easy To Install, Lightweight, Durable
November 11, 2014
Brakes The Way They Should Be
Been using the Avid G2 Cleansweep rotors with XT M785 brakes for this past summer and the rear brake was never quiet. Stopping power was there but it was a bit of an on/off with metallic pads. Finally got to replace the rotors with the Ice-Techs and my problems are gone. True out of the box, great stopping power and better modulation.

PROS: Lightweight, Easy To Install, Attractive Design

CONS: Expensive

BEST USES: Mountain Biking, Racing
November 25, 2014
Toronto, ON
So far so good
Quick reliable delivery . good service as always.

PROS: Attractive Design, Easy To Install

BEST USES: Racing, Mountain Biking
November 5, 2014
Whistler BC
Great rotors, easy to install
Great rotor, very easy to install. One word of note: instructions are outdated and reference a washer and triangle screws. The screws are no longer triangle, and Shimano no longer uses a washer for these rotors. Just tighten the screws and lift the flaps. I found it a little easier to lift up the tabs first, then tighten everything - otherwise it's impossible to pry the ends even with a tiny flat screwdriver.

PROS: Easy to Use, Durable, Lightweight
February 4, 2013
San Jose, CA
I swapped the cleansweep G3s for these along with the Xt brakes.

So far, amazing rotors. Silent, zero fade on even longer downs. I weigh over 200lb and use 180/160 and it stops me on a dime. My favorite part about these rotors is that there is serious design and thought behind the product. It's not just another steel rotor with a "cool" pattern.

PROS: Durable, Technology
October 31, 2012
Brea, CA
Works like it should
Pretty easy to install. 145gr including bolts for 180mm version, 127gr including bolts for 160mm version.

PROS: Easy To Install, Durable
April 4, 2016
Miami, FL
Upgraded from SLX
I ordered this as part of a 1x11 drive train upgrade I did on my Giant Anthem. I had previously ordered the new XT M8000 brakes for the upgrade, but planned not to replace the rotors as it seemed like a waste considering the rotor were not that old, but after getting the new brakes on the bike I thought maybe I should. After getting them installed, I was glad I did. The new setup with the M8000 brakes and these rotors stops on a dime. Issues I previously had with heat build up on long descents with my old SLX brakes are now no existent. Worth every penny.

PROS: Durable, Easy to Use, Lightweight
June 24, 2016
Gilbert, Arizona

Q & A

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Browse 5 questions Browse 5 questions and 17 answers
What are the best pads to use with this rotor? I am currently using the SLX brake calipers.
A shopper on Feb 13, 2017
BEST ANSWER: I ride in the mountains and feel like the resin offers a little more bite and immediate power. I go through several pads a season so I don't want to have to wait a long time to break them in. Also the resin is more forgiving if you get oil on them.
Can i use resin pads with Shimano XT SM-RT86 6 Bolt Ice-Tech Rotor
Rick on Sep 24, 2016
BEST ANSWER: yep, absolutely... I have tried expensive ice tech fin pads, or the resin xtr 6 dollar pads... I kind of like the cheaper resin though they go quicker, but less squeel.
I had to take a blow torch and just 15 seconds or so torched my pads and rotor surfaces to burn off chemicals, and then they went silent and perfect for me... even new they squealed.
I have shimano m447 brakes with resin b01s pads. I need to replace my rotor, so my question is if I can put the
shimano rt86 rotor? Thank you)
Victor V on Feb 21, 2017
BEST ANSWER: Yes, just get the same rotor size.
As long as you have 6-bolt mounting it will be good. If you have center lock get the center lock rotor.
I have Avid BB7's on my Specialized Secteur road bike; ordered these rotors but they seem to be way too thick, even with both pads backed all the way off. Also the little tab on the inside (right) pad rubs the bolts on the inside of the black centre piece of the rotor where it connects to the outer silver piece. Not a little, but a lot.
Justin on May 1, 2016
Some people call this(?) rotor a Shimano "Deore" XT 6-Bolt Ice-Tech Rotor, a Shimano "Saint" XT Ice-Tech rotor, and Jenson USA doesn't specify either "Deore" or "Saint".

Are all these rotors the same? People just referring to them by different names, ie "Deore", "Saint", or no name?

Does the rotor sold on Jenson USA have a manufacturer part number?

borgey707 on Apr 24, 2016

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.