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Shimano XTR/Dura-Ace RT-MT900 Disc Brake Rotor External Spline Type
Shimano XTR/Dura-Ace RT-MT900 Disc Brake Rotor Internal Spline Type
External Spline Type
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Shimano XTR/Dura-Ace RT-MT900 Disc Brake Rotor 1
Shimano XTR/Dura-Ace RT-MT900 Disc Brake Rotor 2
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Shimano XTR/Dura-Ace RT-MT900 Disc Brake Rotor

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Description

Top Of The Line — Road Or Mountain

Designed to keep your braking system cool on long, demanding descents, the XTR/Dura-Ace RT-MT900 Centerlock Disc Rotor rapidly dissipates heat for more consistent braking performance in extreme conditions, as well as longer pad life and reduced brake fade. These rotors are optimized for the XTR M9100 and M9120 brakes as well as the new Dura Ace, and feature a new design that improves cooling and decreases weight compared to the previous version of the XTR rotor, the RT-99.

Shimano's ICE Technology was first developed for superior cooling under the rigors of pro downhill riding, but with a backwards compatible design in many popular sizes, the latest evolution of XTR rotors from Shimano have now been incorporated into their Dura-Ace road groupset. The RT-MT900 rotor draws heat away from the brake, which can bog down your stopping power, to deliver consistently superior performance no matter the conditions.

Features:

  • XTR/Dura Ace rotor offering improved cooling and braking performance
  • 3-layer Freeza construction dissipates heat on long descents
  • Enjoy consistent performance, longer pad life, reduced brake fade
  • Surface temp cooled by up to 20-degrees Celsius vs. RT-99 rotors
  • 140mm and 160mm rotors shave grams for road, gravel and XC
  • 180m and 203mm are designed for aggressive trail and enduro
  • Shimano Centerlock attachment with lock ring included

  • B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

    Specifications

     

    Brake Type: Disc 

     

    Brake Pad Type: Disc 

     

    Hub Compatibility: Center-Lock 

     

    Brake Parts: Rotor 

    140mm (Internal Spline Type)

    Mfg PartNum: IRTCL900SSI 

    140mm (External Spline Type)

    Mfg PartNum: IRTMT900SSE 

    160mm (External Spline Type)

    Mfg PartNum: IRTMT900SE 

    180mm (External Spline Type)

    Mfg PartNum: IRTMT900ME 

    203mm (External Spline Type)

    Mfg PartNum: IRTMT900LE 

    Reviews

    Ordered by Most Relevant First
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    (11)
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    Dura Ace
    rating
    by Danimal
    Cycling Enthusiast
    Midwest

    the BEST,excellent stoping,quiet and good looks. Buy on sale from WBW.

    Reviewed 6/28/2023
    Was this review useful to you? Yes/No
    Thank you for your feedback.
    Shimano XTR Rotors AKA Dura Ace 9200 Rotors
    rating
    by BBC
    Cycling Enthusiast
    Beaverton, OR

    After catching wind of world tour riders using these on the road I ordered a set to see how they felt compared to the regular Dura Ace / Ultegra rotors, suffice to say its why this is the new road rotor for the 9200 group.

    Reviewed 10/29/2021
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    Great Brakes!
    rating
    by mbiker2298
    USA

    I bought the 140mm rotors to put on my road bike, they work great with Ultegra and dissipate heat perfectly. I got them for some marginal weight saving and because they look cool.

    Reviewed 4/13/2021
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    Best of form and function
    rating
    by Anonymous
    Cycling Enthusiast
    Houston, TX

    I'm using these on a gravel bike. Stopping power is great and consistent. Aesthetically, they look nice than the other Shimano options.

    Reviewed 12/28/2020
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    Top notch
    rating
    by Anonymous
    Sacramento

    Grabs better than ultegra and stays functioning through long mountain descends

    Reviewed 1/13/2024
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    Thank you for your feedback.
    Great product, Shimano never disappoints
    rating
    by MSB
    Cycling Enthusiast

    Bought as a replacement for my current DuraAce setup just for prevention.

    Reviewed 6/30/2023
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    Thank you for your feedback.
    They do a good job of stopping the bike and are easy to install.
    rating
    by GV3
    Competitive Racer
    VT

    These rotors are great. Can't say that they're necessarily better than any others, but they do a good job for a good price.

    Reviewed 5/26/2023
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    Great feedback feeling
    rating
    by Anonymous
    Sacramento
    1 of 1 customers found this review helpful.

    Love the feeling of the brakes holding on descents and not fading. Big difference from my road Ultegra rotors!

    Reviewed 3/2/2023
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    Thank you for your feedback.
    Xtr disc are the best
    rating
    by Veloci1
    Southern cal
    1 of 1 customers found this review helpful.

    I am using these on my road bike. They are light and perform better than expected.

    I am using them with sram red calipers and i am very satisfied.

    Reviewed 7/12/2021
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    Great stopping power!
    rating
    by Anonymous

    Got these for a custom build and and I'm happy with these rotors. Could have went with a 180mm rotor as 160mm is a little under powered.

    Reviewed 9/12/2020
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    Great option for squeaking Dura Ace brakes, replaced my Dura ace with these, worth the money.
    rating
    by Anonymous
    Cycling Enthusiast
    Tampa FL

    no more noise when stopping.

    Reviewed 11/22/2021
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