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Thread: NRS Sid tuning

  1. #1
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    NRS Sid tuning

    I just picked up a 02 NRS Air with the rear Sid. I weigh 190 lbs. I'm trying to balance the pressure. What's a good starting point for positive/negative setting? I think I can get the positive OK by eliminating any sag but I'm not sure of the negative. Thanks if you can help.

  2. #2
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    Quote Originally Posted by Flash
    I just picked up a 02 NRS Air with the rear Sid. I weigh 190 lbs. I'm trying to balance the pressure. What's a good starting point for positive/negative setting? I think I can get the positive OK by eliminating any sag but I'm not sure of the negative. Thanks if you can help.
    do you have a manual? There is a setup guide on this page:
    http://www.giant-bicycles.com/en-US/page/135/

    here's what it says:

    The NRS or “No Resonance System” requires a “No Sag” set up. This is
    different than other suspension systems, which incorporate sag. To get the most
    from your XTC NRS bicycle, please follow the following set-up guidelines.
    “No Sag” Setup (See Drawing #1):
    1) As a starting point, set the positive air chamber (B) on the rear shock at
    10psi over the rider’s riding weight. This is the weight while wearing all
    your riding gear. (For example, if the rider’s weight is 160 lbs set the shock
    at 160 psi + 10 psi = 170 psi)
    2) To measure the travel, you can position the rubber “O” ring (D) on the shaft
    of the shock to measure the amount of compression/movement.
    3) Set the negative air chamber (A) at 50psi.
    4) The rider should be able to sit on the bike at rest without compressing the
    rear shock. If the rider compresses the suspension, add 10 psi to the positive
    air chamber (B) and retry setup.
    4) Tune rebound damping (C) to personal tastes(see Shock Basics and
    Terminology).
    5) If you have difficulty setting up the suspension, please see your Authorized
    Giant Dealer for assistance.

  3. #3
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    Thanks, I'm sure that will do it. Thanks.

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