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9. AUTOSAG AIR SHOCK SETUP
Epic models are equipped with AUTOSAG, a unique feature designed to simplify and speed up the adjustment of
air pressure. The AUTOSAG feature automatically determines the correct amount of sag, and eliminates the need
to refer to an air chart to determine the correct pressure based on rider weight. However, the shock still requires
compression and rebound adjustment based on type of terrain and rider weight. Please refer to the charts on page
26.
Air pressures, rebound and compression settings are suggested starting point recommendations
only. They should be adjusted according to the rider’s needs for each type of terrain to achieve
optimal performance. Shock air pressure can also be set up manually to rider preference.
9.1. STEP 1: SETTING AUTOSAG
1
2
3
4
1. Position the shock compression lever or knob (blue) to the full open or off position
1
. Remove the positive air
valve cap
2
(black).
2. Attach a high-pressure shock pump to the positive air valve.
Inflate to the rider’s weight in pounds (lb) plus 50psi. For kilograms, multiply by three (e.g. 75kg = 225psi).
CAUTION: Do not exceed 350psi before activating the Autosag valve (this is a starting pressure
only). After the Autosag is activated, Fox recommends a maximum working pressure of 300psi
when riding.
3. Make sure you’re wearing all gear that would normally be worn on a ride (shoes, helmet, hydration pack if used,
etc.). Mount the bicycle, prop up against a wall, and sit in the saddle in a normal riding position. Do not set sag
while riding.
4. Unthread then press the grey AUTOSAG valve
3
. The pressure will decrease until the suspension settles into
its pre-adjusted sag point. Once the Autosag valve is no longer releasing pressure, let go of the Autosag valve.
5. Cycle the shock a few times
4
, then dismount the bicycle.
6. Do not depress the AUTOSAG valve again, otherwise the proper sag setting will be lost, and will require this procedure to be
repeated from step #2.
7. Put the positive air valve cap back on.
Rider weight in pounds (lb) plus the PSI (depending on model as described above) is the lowest
amount of pressure that should be in the shock before activating AUTOSAG. If the air pressure is too
low, the AUTOSAG button may let air out of the negative chamber, which would result in incorrect sag.
Sag is measured as the distance between the o-ring and the shock body’s seal, after the rider’s weight
has been applied to the bike, with no bounce. When AUTOSAG is correctly set, sag should measure
approximately 20-30% of stroke, depending on riding/terrain experience, i.e. travel. If the rider is
approaching 300lbs, AUTOSAG may not function, and sag may exceed the bike’s prescribed amount.
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