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  1. #1
    mtbr member
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    IS or PM adapters for Formula

    I am considering changing over to Formula Oro brakes since my Shimano XTRs have failed How do I know if I need IS or PM adapters? Can I use the XTR rotors with the Formula calipers?

  2. #2
    Nightriding rules SuperModerator
    Reputation: crisillo's Avatar
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    the adapters you need depend in the fork you have. (the rear should be IS )

    shimano rotors usually have a very narrow braking track (except for Deores which are a bit wider), so I would recommend you use Formula's rotors.

  3. #3
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    The fork is a Manitou Skareb Elite. The frame is a Titus Racer-X.

    Thanks!

  4. #4
    Nightriding rules SuperModerator
    Reputation: crisillo's Avatar
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    the skareb is a PM fork, if you will use a 160mm rotor you will need no adapter in the front, if you go bigger you will need a PM-to-PM adapter.
    You will need an PM-to-IS adapter for the rear anyhow, just get the one that matches the rotor size you want.

  5. #5
    mnt bike laws of physics
    Reputation: yogiprophet's Avatar
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    XTR to Oro's

    I was thinking of making the same switch and was also wondering about the rotor compatability. The Oro rotors appear to have a very narrow braking track as does the XTR's. Does anyone know for sure about the compatability?

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