Shimano XTR Disc Rotors on Dura Ace or Ultegra?
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  1. #1
    RoadBikeReview Member
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    Question Shimano XTR Disc Rotors on Dura Ace or Ultegra?

    Since this is the weight weenie forum...

    Do Shimano XTR disc rotors work on Dura Ace or Ultegra disc brakes? If so, is there any issue with using them on road bikes?

    I ask because the XTR rotors are a few grams lighter than the Dura Ace and Ultegra rotors (the latter two weigh the same). I'm assuming the weight difference is due to there being smaller cooling fins on the inside of the rotor.

    Unless you're riding in the mountains, I can't imagine one would have any issues switching to the XTR rotors with the smaller fins?

    SHIMANO XTR RT-MT900
    Claimed Weight: [140mm] 90g, [160mm] 108g



    SHIMANO Dura-Ace SM-RT900
    Claimed Weight: [140mm] 96g, [160mm] 119g

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  2. #2
    Cleavage Of The Tetons
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    They will work just fine.

  3. #3
    RoadBikeReview Member
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    Yes, but the Dura-Ace look sooooo sweet... sticking with them.

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