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Shimano XT RT81 Icetech Centerlock Rotor

Item #: BR247L00
From USD$29.99 SAVE 33% USD$44.99 msrp
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Shimano XT RT81 Icetech Centerlock Rotor

Shimano’s RT81 rotors embody their signature Ice-Technology. Ice- Tech produces 25% more braking power. The 3 layer rotor features an aluminum core between stainless steel. This was done to quickly and efficiently dissipate heat. With better head dissipation, there is more consistent braking power.

  • Centerlock Rotors
  • Ice- Technology
  • ┬áMud- Shedding Design

REVIEW SNAPSHOT®

by PowerReviews
Shimano XT RT81 Icetech Centerlock Rotor
 
4.7

(based on 29 reviews)

Ratings Distribution

  • 5 Stars

     

    (22)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to install (28)
  • Great stopping power (27)
  • Sturdy design (22)
  • Fade- free (15)
  • Lightweight (14)

Cons

No Cons

Best Uses

  • Mountain biking (27)
  • Road biking (7)
  • Wet / rain (7)
    • Reviewer Profile:
    • Avid cyclist (21), Casual/ recreational (5), Competitive cyclist (3)
    • Was this a gift?:
    • No (29)

Most Liked Positive Review

 

Great Expensive Rotors

Been using the Shimano RT64 SLX rotors with SLX brakes for this past summer and braking was fine. The Ice-Techs are true out of the box, great stopping power and better modulation. Highly...Read complete review

Been using the Shimano RT64 SLX rotors with SLX brakes for this past summer and braking was fine. The Ice-Techs are true out of the box, great stopping power and better modulation. Highly recommend them if money is not an issue. They work with allmodern Shimano brakes, M615 Deore, M675 SLX, M785 XT, XTR, ZEE.People also installed them with Avid and Hayes brakes.

VS

Most Liked Negative Review

 

RT81 rotor

I replaced a set of non-Icetech rotors after they had worn out. I also changed pads from resin to metal so it would be hard to tell if any braking difference was due to...Read complete review

I replaced a set of non-Icetech rotors after they had worn out. I also changed pads from resin to metal so it would be hard to tell if any braking difference was due to the rotor or pads. Under hard braking the M06 pads with these rotors will howl. I think it's because they get hot. If I'm just bleeding off some speed coming into a turn then the noise isn't bad. The price was good and they work at least as well as the rotors they replaced. There isn't much choice for Centerlock rotors.

Reviewed by 29 customers

Displaying reviews 1-10

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5.0

Great Rotors

By Mike

from Draper

About Me Avid Cyclist

Verified Buyer

Pros

  • Easy To Install
  • Great Stopping Power

Cons

    Best Uses

    • Mountain Biking

    Comments about Shimano XT RT81 Icetech Centerlock Rotor:

    I have used these discs extensively on other bikes so when I started this newest build I didn't hesitate to order them again. Having a trail system near home with 60 miles of single track means a lot of varied riding. A lot of that riding is downhill, and I go through a several sets of pads each season. These discs have take the abuse and keep on stoppin...

    • Was this a gift?:
    • No
     
    5.0

    Great performance and value

    By JB

    from Denver, CO

    About Me Avid Cyclist

    Verified Buyer

    Pros

    • Easy installation
    • Easy maintenance
    • Easy To Install
    • Fade- Free
    • Great Stopping Power
    • Handles Elements Well
    • Lightweight
    • Sturdy Design

    Cons

      Best Uses

      • Mountain Biking
      • Road Biking

      Comments about Shimano XT RT81 Icetech Centerlock Rotor:

      I have tried other disc brake systems and came back to Shimano. It is absolutely reliable. No brake squealing even under adverse conditions. Easiest to install, setup and maintain.

      • Was this a gift?:
      • No
       
      5.0

      Great rotors!!

      By COMTBR

      from CO

      About Me Avid Cyclist

      Verified Buyer

      Pros

      • Easy To Install
      • Fade- Free
      • Great Stopping Power
      • Lightweight
      • Sturdy Design

      Cons

        Best Uses

        • Mountain Biking
        • XC

        Comments about Shimano XT RT81 Icetech Centerlock Rotor:

        The RT81s are simply awesome. Upgraded to a 180/160 from a 160/160 on a '17 Rockhopper. Kept the B01S pads. Stopping power was improved immensely. Rotors are silent and insanely lightweight! Love the Centerlock design - wish all brakes would adopt the design.

        • Was this a gift?:
        • No
         
        4.0

        i would bbuy this again

        By bubba

        from oakridge, or.

        About Me Avid Cyclist

        Verified Buyer

        Pros

        • Easy To Install
        • Fade- Free
        • Great Stopping Power
        • Handles Elements Well

        Cons

        • Noisy When Wet

        Best Uses

        • Mountain Biking
        • Wet Conditions

        Comments about Shimano XT RT81 Icetech Centerlock Rotor:

        best for fade free rotor

        • Was this a gift?:
        • No
         
        5.0

        Easy to install and very light

        By Ben

        from Racine, WI

        About Me Avid Cyclist

        Verified Buyer

        Pros

        • Easy To Install
        • Great Stopping Power
        • Sturdy Design

        Cons

          Best Uses

          • Mountain Biking
          • Road Biking

          Comments about Shimano XT RT81 Icetech Centerlock Rotor:

          I used these on a new Waterford adventure bike build.

          • Was this a gift?:
          • No
           
          5.0

          I would buy this product again

          By Josh J

          from Columbia MO

          About Me Competitive Cyclist

          Verified Buyer

          Pros

          • Easy To Install
          • Fade- Free
          • Great Stopping Power
          • Handles Elements Well
          • Lightweight
          • Sturdy Design

          Cons

            Best Uses

            • Mountain Biking
            • Road Biking
            • Wet Conditions

            Comments about Shimano XT RT81 Icetech Centerlock Rotor:

            Cyclocross

            • Was this a gift?:
            • No
             
            5.0

            best rotor there is

            By bubba

            from oakridge, or.

            About Me Avid Cyclist

            Verified Buyer

            Pros

            • Easy To Install
            • Fade- Free
            • Great Stopping Power
            • Handles Elements Well
            • Sturdy Design

            Cons

              Best Uses

              • Mountain Biking

              Comments about Shimano XT RT81 Icetech Centerlock Rotor:

              great for downhillers

              • Was this a gift?:
              • No
               
              3.0

              Make sure to get separate lockrings if using 15-20mm axle

              By Eric

              from Burlington, VT

              About Me Competitive Cyclist

              Verified Buyer

              Pros

              • Great Stopping Power
              • Lightweight
              • Sturdy Design

              Cons

                Best Uses

                • Mountain Biking

                Comments about Shimano XT RT81 Icetech Centerlock Rotor:

                The rotors work great, and the 203mm rotors deliver noticeably better stopping power than my 180s. They come with lockrings, which can be installed with a cassette tool; however, the supplied lockrings will not fit over 15-20mm axles. Shimano offers lockrings for larger axles, but they must be purchased separately and installed with a bottom bracket tool.

                • Was this a gift?:
                • No
                 
                5.0

                Exelent rotors!

                By Nate

                from Philadelphia

                About Me Avid Cyclist

                Verified Buyer

                Pros

                • Easy To Install
                • Fade- Free
                • Great Stopping Power
                • Handles Elements Well
                • Sturdy Design

                Cons

                  Best Uses

                  • Mountain Biking
                  • Road Biking
                  • Wet Conditions

                  Comments about Shimano XT RT81 Icetech Centerlock Rotor:

                  I recently purchased these rotors for a new all road bike I built. They were the perfect addition to the Shimano CX75 center lock hubs. Super fast to install. I wouldn't call them the lightest rotor out there but the performance is unmatched. Exelelent stoping power in dry or wet conditions and I haven't experienced any slipping or brake fade on sketchy decents. The solid braking gives me new confidence on my local gravel and road rides

                  • Was this a gift?:
                  • No
                   
                  5.0

                  excellent quality , easy to intall

                  By Roberto Jose

                  from Toronto,Canada

                  About Me Casual/ Recreational

                  Verified Buyer

                  Pros

                  • Easy To Install

                  Cons

                    Best Uses

                    • Mountain Biking

                    Comments about Shimano XT RT81 Icetech Centerlock Rotor:

                    I'm very happy with the purchase, great service and very fast service, definitely the best place to get your bike gear I highly recommend Jenson USA

                    • Was this a gift?:
                    • No

                    Displaying reviews 1-10

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                    Previous | Next »

                    Do you have questions about this product?

                    Get answers from real customers and in-house experts with AnswerBox.

                    4 Questions | 9 Answers
                    Displaying questions 1-4
                    • Q:

                      Do these come with the Lock Ring for a 15mm hub?
                      Asked on 8/10/2016 by T

                      7 answers

                      • VERIFIED BUYER

                        A:

                        No, you will need to buy that separately.

                        Answered on 8/12/2016 by Anonymous
                      • VERIFIED BUYER

                        A:

                        Ok, I checked and there is a lock ring included with the disc for a 15mm hub, sorry for the confusion.

                        Answered on 8/11/2016 by Anonymous
                      • VERIFIED BUYER

                        A:

                        I believe so. Take a look at this video. This is exactly what mine came w/.
                        https://www.youtube.com/watch?v=lc2FfIH6tEI
                        But as in the video, I had to use the lockring that came w/ my Bontrager
                        hubs. The one that came in the package didn't fit.

                        Answered on 8/11/2016 by Anonymous
                      • VERIFIED BUYER

                        A:

                        It does come with lock ring, but I bought it for a 12x142 rear axle. So I
                        don't necessarily know exactly if it would work with a 15mm front hub, but
                        I would assume it would.

                        Answered on 8/11/2016 by Anonymous
                      • VERIFIED BUYER

                        A:

                        No, it did not, but luckily for me the rotor I was replacing already had the
                        lock ring I needed.

                        Answered on 8/11/2016 by Anonymous
                      • VERIFIED BUYER

                        A:

                        Wait, I think my wheel came with the lock rings, not the actual rotor.

                        Answered on 8/10/2016 by Anonymous
                      • VERIFIED BUYER

                        A:

                        yes, mine did

                        Answered on 8/10/2016 by Anonymous
                    • Q:

                      Do the rotors come with a lock ring?
                      Asked on 6/20/2016 by Dan from Saskatoon, SK

                      1 answer

                      • Staff Reviewer

                        A:

                        Yeah, they should work with that set up. They are individually sold.

                        Answered on 6/20/2016 by Oscar - Merchandisor from Riverside, CA
                    • Q:

                      Will these rotors work with a 15mm frnt. axle and 12x142 rear axle?
                      Asked on 4/16/2016 by sean from milwaukee wi.

                      0 answers

                    • Q:

                      is this individual or for as a set?
                      Asked on 4/14/2016 by Marko from Bellingham WA

                      1 answer

                      • A:

                        Just one rotor.

                        Answered on 6/12/2016 by rsilvers from MA
                    Displaying questions 1-4

                    Do you have a question about this product? 

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                    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.