Spring Preload - BMW S 1000 RR Rider's Manual

Spring preload

Setting
It is essential to set spring pre-
load of the front suspension to
suit the terrain. Increase spring
preload for riding in rough terrain
and reduce if the terrain is level.
It is essential to set spring pre-
load of the rear suspension to
suit the load carried by the mo-
torcycle. Increase spring preload
when the motorcycle is heavily
loaded and reduce spring preload
accordingly when the motorcycle
is lightly loaded.
Adjusting spring preload
for front wheel
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
Make sure there is no load
on the motorcycle; remove all
items of luggage, if carried.
Hold the motorcycle upright
and measure distance d from
bottom edge 1 of the outer
tube to front axle 2.
Apply the rider's weight to the
motorcycle.
With the assistance of a
second person, measure
distance d between points 1
and 2 again and calculate the
difference between the two
readings.
Load-dependent adjust-
ment of spring preload
Negative spring displace-
ment of front wheel
10...15 mm (With rider
85 kg)
Your motorcycle's hand-
ling will suffer if you do not
match the spring-preload and
damping-characteristic settings.
Adjust the damping characteristic
to suit spring preload.
To reduce the difference (in-
crease spring preload, in other
4
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