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  1. #1
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    New question here. Hayes MX-2 Mechanical Instillation Issues

    I am currently installing a set of Hayes MX-2 Mechanical discs brakes onto my Trek 4300. I had to get the adapters to go from post mount to the standard IS mount.

    Now, the front went on great, no problems, but when installing the back caliper there is rubbing on the disc, the brake has no more room to move outward, but the disc is still rubbing on the outward pad.

    So I was wondering if anyone might have some insight into this problem

    Thanks
    Evolve or Die

  2. #2
    mtbr member
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    Shave some material off from the disc tabs, grind the adapter down by 1-2mm, or a combination of both.

    As a last resort, when all else fails, you can respace the rear axle by adding a washer then redishing the wheel.

  3. #3
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    ok, I'll try to grind them down, thanks for the reply
    Evolve or Die

  4. #4
    Never trust a fart
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    Your quick release can affect this also. If its really tight, it will pull the rotor closer to the outside pad. If its loose, it will be closer to the inner pad. Before grinding anything, try to find a happy medium where the QR is tight, but the rotor is centered.

  5. #5
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    I checked the QR, but it didn't change a thing, it rubbed with the QR tight, and loose. The bracket was only $15, if I mess it up not much lost.

    Thanks for the suggestions, if anyone else has a different fix I'm all ears.
    Evolve or Die

  6. #6
    Master of the Universe!
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    Along with the QR tension issue, is there a possibility that the axle isn't sitting in the dropouts evenly?

  7. #7
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    I've checked and rechecked all of that multiple times.
    Evolve or Die

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