- Pag. 4. -
11. It is essential to set up the NRS
TM
system with zero “SAG”. Here’s the final check: ride the bike with
NRS
TM
system with a relatively high RPM on a nicely paved road. In case the bike tends to “bob”
with small motions, then increase the positive spring by another 10 psi. Now try again and the
result should be, that the bike does not “bob” anymore, whether sitting on the saddle or climbing or
sprinting out of the saddle.
12. Note: the air pump which is supplied free of charge with the bike is equipped with an escape valve
(the black knob below the gauge) to de-pressurise the shock when the pressure is too high.
13. Note: the shock setting should be checked regularly (at least every 2 weeks). Of course the
simplest way to check is the asphalt paved road test with high RPM (see point no. 11).
14. Note: by putting the pump on the shock, the valve is opened and always some air pressure will be
lost (between 10 and 15 psi.). By taking the air pump from the valve no air pressure will be lost.
A small amount of air can be heard escaping, this is between the valve and the gauge.
15. Note: when the shock is set up for the first time and has to be inflated from 0 psi., the temperature
in the air chamber will rapidly rise. Afterwards the temperature inside will drop slowly. Together with
the drop in temperature some air pressure will be lost. Therefore the pressure has to be checked
again after approx. 15 minutes.
16. Note: air shocks are sensitive to big temperature changes. Especially in winter when the bike is
taken outside, the air pressure setting has to be checked again outside.
17. Once you understand the routine of correctly setting up the NRS
TM
suspension system, and have
experienced what the bike can do for you (MORE POWER), you can then try to slightly modify the
air shock setting to your own personal needs. Riding tests can be made with the pressure of the
negative spring under two conditions:
A. always maintain the same big difference (same ratio) between positive and negative spring like
the final setting in step 11, and
B. always maintain the “ZERO-SAG” principle.
Have fun!
2-3. Rear suspension tuning.
By adjusting the air pressure, the RockShox SID rear shocks can be tuned to your particular weight,
riding style and terrain. This shock has been designed to be tuned for soft, plush descent riding, for the
long climbs, or a combination of both.
Different riders require different performance characteristics from their suspension.
(A). Heavier or more aggressive rider needs a stiffer compression damping (spring), a higher air
pressure.
(B). Lighter rider needs softer compression damping (spring), a lower air pressure.
All Giant dual suspension bicycles are equipped with front and rear shock absorbers that offer some
sort of adjustment and tuneability. Adjustment of suspension is subjective and cannot be 100%
prescribed by Giant. If help is needed, please contact your Giant dealer.
When experimenting with set up, remember that front suspension reacts differently to bump force input
than the rear shock.
When tuning suspension, always make one change at a time and write it down. This takes patience
and time, but allows you to understand how each change affects the ride. Use a familiar trail to make
small adjustments at a time. To understand the tuning range it may also help if the bike is ridden from
one extreme to the other.
WARNING:
THE REAR SHOCK UNIT IS SERVICEABLE.
THIS SERVICE MUST BE PERFORMED WITH PROPER TOOLS BY AN
AUTHORISED ROCKSHOX DEALER OR BY ROCKSHOX. NOONE
ELSE SHOULD DISASSEMBLE OR OTHERWISE MODIFY THE
SHOCK UNIT OR ATTACHMENTS. DOING SO WILL NOT ONLY VOID
ALL WARRANTIES BUT CAN LEAD TO SERIOUS INJURY OR DEATH.
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