11 TUNING THE CHASSIS 42
11.6 Measuring rear wheel sag unloaded
Preparatory work
– Raise the motorcycle with the lift stand. ( p. 49)
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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
.
Finishing work
– Remove the motorcycle from the lift stand. ( p. 49)
11.7 Checking the static sag of the shock absorber
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–
Measure distance
of rear wheel unloaded. ( p. 42)
– 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
.
Info
The static sag is the difference between measurements
and
.
– 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. ( p. 43)
11.8 Checking the riding sag of the shock absorber
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–
Measure distance
of rear wheel unloaded. ( p. 42)
– 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
.
Info
The riding sag is the difference between measurements
and
.
– 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. ( p. 43)
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