Tyres; Headlight - BMW HP4 Rider's Manual

4
54
To reduce negative spring dis-
placement (increase spring pre-
load, in other words), use the
z
tool from the on-board tool-
kit to turn hexagon 3 in direc-
tion A.
To increase negative spring
displacement (reduce spring
preload, in other words), use
the tool from the on-board
toolkit to turn hexagon 3 in dir-
ection B.

Tyres

Checking tyre pressure
Incorrect tyre pressures im-
pair the motorcycle's hand-
ling characteristics and increase
the rate of tyre wear.
Always check that the tyre pres-
sures are correct.
At high road speeds, tyre
valves have a tendency to
open as a result of centrifugal
force.
Fit valve caps with rubber seals
and screw them on firmly to pre-
vent sudden deflation.
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
Check tyre pressures against
the data below.
Tyre pressure, front
2.5 bar (Tyre cold)
Tyre pressure, rear
2.9 bar (Tyre cold)
If tyre pressure is too low:
Correct tyre pressure.

Headlight

Adjusting headlight for
driving on left/driving on
right
This motorcycle has a
symmetric-beam low-beam
headlight. If the motorcycle
is ridden in a country where
the opposite rule of the road
applies, its symmetric low-
beam headlight means that
no measures are necessary to
prevent the headlight beam from
dazzling oncoming traffic.