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  1. #1
    Arnborg strik
    Reputation: Thomas's Avatar
    Join Date
    Feb 2004

    Formula The One rotor height/width????

    Currently im running XTR 975 discbrakes with matching centerlock rotor's.
    Yesterday i got a good offer on a set of Formula The One's without rotor's.
    My question is:
    Can i use my XTR RT97 rotor's with The One's caliper?
    Could anybody please measure their The One's rotor "braketrack"

    Thanks in advance

  2. #2
    Mechanic since 1994
    Reputation: jonnybiggs69's Avatar
    Join Date
    Jul 2007
    I'd like to know this as well - specifically for the Oro's

    I wonder if the ever knowledgeable Chris Costello of Perigeum Development might be able to shed some light on this?

    There is a few conflicting comments in the RT97 compatibilty sticky...

    Guess this is an indirect 'bump'

  3. #3
    mtbr member
    Reputation: 'size's Avatar
    Join Date
    Oct 2005
    i'm getting 13mm at the narrowest and 16mm at the widest on all 4 of my formula oro rotors - three 160mm and one 200mm. measured from the inside/lower part of the track to the outer.

    while formula does make a 203mm rotor, they typically ship with a 200mm rotor as their 8" standard. keep this in mind regarding caliper/adapter position if you're using a 203mm on your bike now.

  4. #4
    Industry Member
    Join Date
    Jul 2005
    Hey Guys,
    Give us a call in the office and we can give you the answers to your questions! You can also email us at


    Chris Costello
    Perigeum Development / Formula Brake USA

  5. #5
    JB. is offline
    mtbr member
    Join Date
    Feb 2008
    I've used Shimano XTR CL rotors with my Oro brakes earlier. 160mm and 180mm. It works just fine. The One and Oro use the same rotors, so I would guess you could run XTR CL with both brakes.

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