HP Velotechnik Spirit - Manual (Page 21)

Adjusting y
our ne
w bik
e
HP
Velotechnik
19
Recommended air pressures
load pressure
to 80 kg 8 bar
to 100 kg 9 bar
to 130 kg 10 bar
Maximum allowed pressure: 20 bar
To pump up the suspension fork you need a
special air pump designed for bicycle air
shocks. It must feature a fitting schrader valve
adaptor and a pressure indicator.When attach-
ing or removing the pump to/from the valve,
you will lose some pressure (about 0,5-1 bar).
Take off the pump quickly.
Remount the handlebar stem on the steerer
tube. Secure the front wheel with your legs
and adjust the handlebar perpendicular to the
front wheel. Check the safe clamping by trying
to twist the handlebars against the front
wheel.
Adjusting the spring stiffness of the
suspension fork
In order to adjust the spring stiffness you have
to take off the handlebar stem (not with
Glideflex folding stem). For that purpose, loo-
sen the lower clamping screw of the handlebar
stem which clamps the slotted tube of the
stem on the steerer tube with a hex key 6.
Take off the handlebar stem and carefully put it
aside. In doing so, take care not to bend or
stretch the cables.
Now you can see Schrader valve at the end of
the steering tube. Use a fork pump to change
the air pressure in the suspension system.
You increase the spring stiffness by increasing
the air pressure (pumping in more air).
You decrease the spring stiffness by decreasing
the air pressure (deflate some air).
Caution! Do not loosen the smaller clam-
ping clip below the stem tube.This clip secu-
res the headset and adjusts the steering
play. If you have loosened this screw you will
possibly have to readjust the headset, see
page 43.
After you have loosened the clamping screw of the stem you can
take off the stem.
In the inner fork steerer tube you will find an air valve to adjust
the air pressure.
Danger! Please take care that the air su-
spension cartridge never protrudes more
than 13-23 mm above the fork’s steering tu-
be. Else the cartridge may become loose.
This may lead to uncontrollable situations
and serious injury.