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  1. #1
    mtbr member
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    Jun 2008
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    dhx air 4.0 service

    i am noticing a "thump" in my dhx air 4 shock. its typically when my propedal is on. It also blows though travel pretty fast.

    Do you have any recommendations what the thump is or tuning ideas?

  2. #2
    mtbr member
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    Mar 2007
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    The boost valve can cause a thump sometimes. You could try checking/altering the pressure in there to see if it changes.

    Running a high-volume air can? That can cause blowing through travel. Sometimes worth swapping it out for the standard can, or modify (reduce) the volume of the HV can with spacers.

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