MY20K03-2_1.0_18.07.2019
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Operation
The air valve is located under a blue cover on
the head of the left shock absorber. Screw off
the cover anti-clockwise.
Place a high-pressure pump on the valve.
Pump the suspension fork up to the desired
pressure. Never exceed the recommended
maximum air pressure. Comply with the values
of the filling pressure table.
Remove the high-pressure pump.
Measure the distance between the crown and
the dust wiper of the fork. This distance is the
"total deflection of the fork."
Push the O-ring downward against the dust
wiper of the fork. If an O-ring is not available,
attach a cable tie to the stanchion temporarily.
Put on your usual bicycling clothing, including
luggage.
Sit on the pedelec in your usual riding position
and support yourself (e.g. against a wall or
tree).
Get off the pedelec without allowing it to
deflect.
Measure the distance between the dust wiper
and the O-ring or cable tie. This dimension is
the sag. The recommended sag value is
between 15% (hard) and 20% (soft) of the
"total fork deflection."
Increase or reduce the air pressure until you
have reached the desired sag.
Once the sag is correct, re-tighten the blue air
cover cap clockwise.
6.6.6.2 Adjusting the rebound
The rebound defines the speed at which the fork
rebounds after being loaded. The rebound setting
depends on the air pressure setting. Higher sag
settings require lower rebound settings.
Turn the rebound adjuster clockwise to the
closed position until it stops.
Figure 58: FOX rebound adjuster (1) on the fork
Turn the rebound adjuster anti-clockwise.
Adjust the rebound in such a way that the fork
rebounds quickly, but without bottoming out
upward during testing. Bottoming out is where
the fork rebounds too quickly and stops moving
abruptly once it has reached the full rebound
distance. You will hear and feel a slight knock
when this occurs.
Rider weight
Rhythm 34
Rhythm 36
Minimum air
pressure
40 psi (2.8 bar)
40 psi (2.8 bar)
54 - 59 kg
58 psi
55 psi
59 - 64 kg
63 psi
59 psi
64 - 68 kg
68 psi
63 psi
68 - 73 kg
72 psi
67 psi
73 - 77 kg
77 psi
72 psi
77 - 82 kg
82 psi
76 psi
82 - 86 kg
86 psi
80 psi
86 - 91 kg
91 psi
85 psi
91 - 95 kg
96 psi
89 psi
95 - 100 kg
100 psi
93 psi
100 - 104 kg
105 psi
97 psi
104 - 109 kg
110 psi
102 psi
109 - 113 kg
114 psi
106 psi
Max. pressure
120 psi (8.3 bar)
120 psi (8.3 bar)
Table 29: Filling pressure table for the FOX air fork
If you cannot achieve the desired sag, you may
need to make an internal adjustment. For this
purpose, contact your specialist dealer.
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