Spring Preload - BMW S 1000 RR 2021 Rider's Manual

SPRING PRELOAD

Adjustment
Front spring preload has to
be adjusted to suit the rider's
weight. Increase spring pre-
load for heavier loads, decrease
spring preload for lighter loads.
It is essential to set spring pre-
load of the rear suspension to
suit the load carried by the mo-
torcycle. Increase spring pre-
load when the vehicle is heav-
ily loaded and reduce spring
preload accordingly when the
vehicle is lightly loaded.
Lifting the motorcycle
Adjusting spring preload as re-
commended by BMW Motorrad
requires the use of an engine
lifter. The procedure for use of
this equipment is not detailed
here.
As an alternative, spring pre-
load can also be gauged by a
test ride. If you are not sure
whether this work is within
your capability, contact a spe-
cialist workshop, preferably an
authorised BMW Motorrad re-
tailer.
Adjusting spring preload for
front wheel
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
Lift the motorcycle with an
engine lifter until there is no
load on the front wheel.
Measure distance D between
bottom edge 1 of the slider
tube and front axle 2.
Remove the engine lifter.
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
Apply the rider's weight to the
motorcycle.
With the assistance of a
second person, measure
the distance D between
the points 1 and 2 again
and calculate the difference
(compression) between the
measured values.
Load-dependent adjust-
ment of spring preload
Negative spring displacement
of front wheel
40 ±2 mm (including rider
85 kg)
109