Air shock DT.S
WISS
XM180
Please follow the instructions in the separate
manual from the rear shock manufacturer.
This rear shock contains pressurized air in a
main („positive“) air chamber as suspension
medium.Air shocks are lighter than steel
spring rear shocks.Another advantage is that
the spring stiffness can be easily adjusted with
an air pump: By increasing the pressure the
spring becomes harder.
Air shocks have a progressive spring behaviour,
whereas steel springs have a linear spring be-
haviour.This means that the air shock gets
progressively harder, e.g. it is much stiffer when
fully compressed than when only slightly com-
pressed.
The advantage of this progressive spring be-
haviour is the good bottom-out protection
when heavily loaded.
The valve for the air chamber is located at the
back end of the air shock.The valve is protect-
ed by a metal valve cap.
To pump up the air shock you need a special
air pump designed for bicycle air shocks. It
must have a fitting schrader valve adaptor and
a pressure indicator.
When attaching or removing the pump
to/from the valve, you will loose some air
(about 0,5-1 bar).Take off the pump quickly.
Recommended pressure settings
load
pressure
– 80 kg (183 lbs)
9 bar
–100 kg (230 lbs)
10,5 bar
–130 kg (286 lbs)
11 bar
Maximum allowed pressure is 18 bar.
22
HP
Velotechnik
Adjusting the suspension
Danger!
Take care that the rear wheel or
mudguard or suspension element never hit
the frame, seat or rear rack box while the
suspension is fully compressed.
Therefore fully deflate the air shock. Have a
second person mount the bicycle and make
the suspension bottom out by pushing on
the seat or the rear rack.
If the distance between the wheel or mud-
guard and the frame, seat or rear rack is
smaller than 1 cm you will have to have your
bike dealer mount an additional spacer in-
side the air shock. In case you don't, the
mudguard may break suddenly or the rear
wheel might be blocked which can lead to
serious crashes.