Bosch 22-15-2061, Translation Of Original Operating Instructions, Page: 133 / 299

MY22Z0a - 12_1.0_25.07.2022
132
Operation
6.5.13.2 Adjusting the SR SUNTOUR fork air suspension
Only applies to pedelecs with this equipment
 The air valve is located beneath the air valve
cap on the crown. Twist off the air valve cap .
Figure 143: Different screw caps
1 Attach a high-pressure damper pump to the air
valve .
2 Pump air suspension fork to the required
pressure. Observe the levels in the SR
SUNTOUR tyre pressure table. Never exceed
the recommended maximum tyre pressure.
3 Detach high-pressure damper pump.
4 Measure the distance between the crown and
the dust seal. This distance is total deflection of
the fork.
5 Push a cable tie attached temporarily
downwards against the dust seal.
6 Put on normal pedelec clothing (including
baggage).
7 Sit on the pedelec in your usual riding position
and support yourself against an object, such as
a wall or tree.
8 Get off the pedelec without allowing it to
deflect.
9 Measure distance between the dust seal and
the cable tie.
 This measurement is the sag. The
recommended value is between 15% (hard)
and 30% (soft) of the total fork deflection.
10 Increase or reduce air pressure until you have
reached the desired sag.
11 If the sag is correct, turn the air valve cap
clockwise.
12 If you are unable to achieve the required sag,
an internal adjustment may be needed.
Contact specialist dealer.
Recommended air pressure (psi)
Body weight
AION35
Mobie 45
Axon34
XCR34
XCR32
Mobie 45 NCX XCR24 XCM-Jr.
<55 kg 35… 50 40… 55 40… 55 40… 55 40… 55 40… 55
55 … 65 kg 50… 60 55… 65 55… 65 55… 65 – –
65 … 75 kg 60… 70 65… 75 65… 75 65… 75 – –
85 … 95 kg 85… 100 85… 100 85… 100 85… 95 – –
> 100 kg +105 +100 +100 +100 – –
Maximum air
pressure
120 145 130 180 100 100
Table 41: SR SUNTOUR tyre pressure table for the air fork