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10.11
Air suspension XACT
10.12
Checking the basic setting of the fork
Info
For various reasons, no exact riding sag can be determined for the fork.
Air suspension WP XACT is used in the fork.
In this system, suspension is located in the left fork leg and damp-
ing in the right fork leg.
As fork springs are no longer required, a significant weight
advantage is achieved when compared to conventional forks. The
response on slightly uneven surfaces is significantly improved.
In normal driving mode, suspension is provided exclusively by an
air cushion. A steel spring is located in the left fork leg as an end
stop.
Info
If the fork is frequently overloaded, then the air pressure in
the fork must be increased to avoid damage to the fork and
frame.
The air pressure in the fork can be quickly adjusted to the rider's
weight, surface conditions and the rider's preference using a fork
airpump. The fork does not have to be dismantled. The time con-
suming mounting of harder or softer fork springs is not required.
If the air chamber loses air due to a damaged seal, the fork will
still not sag. In this case the air is retained in the fork. The
F03629-01
suspension travel is maintained as far as possible. The damping
becomes harder and the riding comfort reduces.
As with a conventional fork, the damping can be adjusted in
rebound and compression stages.
The rebound adjuster is located at the lower end of the right fork
leg.
The compression adjuster is located at the upper end of the right
fork leg.
–
Smaller differences in the rider's weight can be compensated
for by the fork air pressure.
–
However, if the fork frequently bottoms out (hard end stop on
compression), the fork air pressure must be increased, within
the specified values, to avoid damage to the fork and frame.
–
If the fork feels unusually hard after extended periods of oper-
ation, the fork legs need to be bled.
401000-01
TUNING THE CHASSIS 10
45
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