11
TUNING THE CHASSIS
50
11.6
Measuring rear wheel sag unloaded
Preparatory work
–
Raise the motorcycle with the lift stand. (
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Main work
–
Measure the distance
–
as vertically as possible
–
between the rear axle and a fixed
point such as a mark on the side cover.
–
Make note of the value as measurement
A
.
Finishing work
–
Remove the motorcycle from the lift stand. (
11.7
Checking the static sag of the shock absorber
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–
Measure distance
A
of rear wheel unloaded. (
–
Hold the motorcycle upright with the aid of an assistant.
–
Measure the distance between the rear axle and the fixed point again.
–
Note down the value as dimension
B
.
Info
The static sag is the difference between measurements
A
and
B
.
–
Check the static sag.
Static sag
33… 35 mm (1.3… 1.38 in)
» If the static sag is less or more than the specified value:
–
Adjust the spring preload of the shock absorber.
x
11.8
Checking the riding sag of the shock absorber
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–
Measure distance
A
of rear wheel unloaded. (
–
With another person holding the motorcycle, the rider, wearing full protective cloth-
ing, sits on the seat in a normal sitting position (feet on footrests) and bounces up
and down a few times.
The rear wheel suspension levels out.
–
Another person now measures the distance between the rear axle and a fixed point.
–
Note down the value as dimension
C
.
Info
The riding sag is the difference between measurements
A
and
C
.
–
Check the riding sag.
Riding sag
105… 115 mm (4.13… 4.53 in)
» If the riding sag differs from the specified measurement:
–
Adjust the riding sag.
x