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  1. #1
    mtbr member
    Reputation: brentos's Avatar
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    Use XTR Rear IS mount caliper for 180mm front rotor?

    Is it possible to use a rear M975 XTR IS mount caliper to to run a 180 mm rotor on an IS mount fork without an adapter?

    Thanks!
    Race Reports, PreRide Reports, and General Rambling:

    www.roostersbikersedge.com

  2. #2
    mtbr member
    Reputation: brentos's Avatar
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    Looks like it may have been answered in 2004. (Yes)

    Best way to run 180mm on XTR calipers

    Can anybody confirm.
    Race Reports, PreRide Reports, and General Rambling:

    www.roostersbikersedge.com

  3. #3
    Ultimated Outsider
    Reputation: sundowner's Avatar
    Join Date
    Mar 2007
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    547
    Yes all Shimano IS 160 rears are 180 fronts, and 160 fronts are 140 rears.
    If I disagree with you, it's because you are wrong.

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