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MY21B01 - 32_1.0_17.08.2020 68
Operation
6.5.7 Adjusting the FOX fork
Only applies to pedelecs with this equipment
The adjustment shown here represents a basic
setting. The basic setting can be adjusted to the
riding surface and personal preferences.
6.5.7.1 Adjusting the negative deflection
Negative deflection depends on the rider's weight
and sitting position. The recommended negative
deflection is between 15% (hard) and 20% (soft)
of the total fork deflection depending on
preferences and pedelec use.
When adjusting the negative deflection, ensure
that each compression adjuster is in an open
position, i.e. each compression adjuster has been
turned in an anti-clockwise direction until it goes
no further.
The pressure is to be measured at an ambient
temperature of 21 to 24 °C.
1The air valve is located beneath a blue valve
cap on the crown of the left-hand shock
absorber. Unscrew the valve cap in an anti-
clockwise direction.
2Attach a high-pressure damper pump to the air
valve.
3Pump the suspension fork to the required
pressure. Observe the levels in the FOX filling
pressure table. Never exceed the maximum
air pressure or fall below the minimum air
pressure recommended in the table.
4Detach high-pressure damper pump.
5Measure the distance between the crown and
the fork's dust wiper. This distance is total
deflection of the fork.
6Push the O-ring downwards against the fork's
dust wiper. If there is no O-ring, attach a cable
tie to the stanchion temporarily.
7Put on your normal cycling clothing, including
luggage.
8Sit on the pedelec in your usual riding position
and support yourself against an object, such as
a wall or tree.
9Get off the pedelec without the suspension fork
deflecting.
Crash caused by incorrectly set suspension
If the suspension is set incorrectly, the fork may
become damaged, meaning problems may occur
when steering. This will cause a crash with
injuries.
Never ride the bicycle without air in the air
suspension fork.
Never use the pedelec without adjusting the
suspension fork to the rider's weight.
Notice
Settings on the chassis change riding
performance significantly. You need to get used
to the bicycle and break it in to prevent accidents.
It is recommended to note down the determined
negative deflection and rebound levels. This way,
the levels can be used as a starting point for
subsequent, optimised settings and as a
safeguard against unintentional changes.
CAUTION
!
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
Maximum air
pressure
120 psi (8.3 bar) 120 psi (8.3 bar)
Table 33: FOX filling pressure table for air fork
68


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