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Setup for AC Air (See Drawing #4):
1) For initial setup, set the positive air chamber (B) to the rider’s weight set the
negative air chamber (A) to the riders weight minus 20 psi. (for example if
the rider weight is 150 lbs, set the positive air chamber to 150 psi. and the
negative air chamber to 130 psi.). It is important that the positive air
chamber is set first. NOTE: The negative air chamber can never have
more air pressure than the positive air chamber. This will result in
poor bicycle performance and cause premature wear of the shock.
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) If the shock moves less than 12mm, reduce the air pressure by 10 psi. in the
negative air chamber (A) followed by the positive air chamber (B).
4) If the shock moves more than 12mm, increase the air pressure by 10 psi. in
the positive air chamber (B) followed by the negative air chamber (A).
5) Tune rebound damping (C) to personal tastes(see Shock Basics and
Terminology).
6) If you have difficulty with set-up, please see your Authorized Giant Dealer.
Drawing #4