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  • Are front and rear pm-pm adaptors the same?
  • vinnyeh
    Full Member

    Will a pm-pm adaptor fit, and fit to the same rotor size, front and rear?

    Thanks.

    Posted 13 years ago
    steveh
    Full Member

    No. There’ll be a 20mm difference IIRC.

    Posted 13 years ago
    crofts2007
    Free Member

    Definitive answer?
    I run 183 sawtooth post/post front rear and use H adaptor.

    http://www.hopetech.com/database/HOPE%20STEP%20UP%20MOUNTS.pdf

    Posted 13 years ago
    cynic-al
    Free Member

    A “+ x mm” adaptor will mean an x mm bigger disc, front or rear, Shirley?

    Posted 13 years ago
    bigyinn
    Free Member

    pm front or rear will fit, but the angle of the caliper to the disc may vary. Its only IS which have the +20mm for use on a rear.

    Posted 13 years ago
    vinnyeh
    Full Member

    cheers all. crofts2007 hadn’t seen that doc, thanks.
    I wanted to know if a Hope ‘c’ mount would fit a 203 disc on the back, but CRC seems to say it’s for a front.
    Looks like they’re interchangeable then. Wonders will never cease.

    Posted 13 years ago
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