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  1. #1
    mtbr member
    Join Date
    Sep 2004

    Headshok Fatty Ultra DL question

    When I air up my Headshok Fatty Ultra DL to about 170 lbs I detach the pump and then reattach the pump to check the pressure, everytime I check it it reads 150lbs. I'm using a Wrench force pump, does anyone use the Cannondale suspension pump and/or does anyone know if it has a quick release to prevent air loss from the suspension when detaching the pump ?

  2. #2
    mtbr member
    Join Date
    May 2004
    just inflate the airsleeve to 190psi instead.

  3. #3
    Are you talking to me?
    Reputation: damion's Avatar
    Join Date
    Jun 2003

    You are doing it right.

    When you take off the pump, the air that you hear escaping is supposed to be from the pump, and not the shock. When you re-attach the pump, it is using 20-25psi to fill the barrel and get a reading.

  4. #4
    mtbr member
    Reputation: nathasm's Avatar
    Join Date
    Mar 2004
    In addition to what others wrote...Some of the pressure that is lost is in the shock hose. Hence most "good" shock pumps have very short hoses.

  5. #5
    I ride therefore I am.
    Reputation: jekyllman's Avatar
    Join Date
    Jul 2003

    Loose inlet valve???

    Check the air inlet valve and make sure it isn't sticking out to far of the inlet nozzle. It should be recessed in the intlet nozzle. Sometimes this will cause the pump to allow air to escape when removing it. Us an inlet valve tool and turn it in (tighten) a little. 20-25lbs is a normal loss when re-attaching the pump like Damion stated.
    "I don't care to belong to a club that accepts people like me as members."
    Groucho Marx.

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