10 TUNING THE CHASSIS
44
10.9 Checking the riding sag of the shock absorber
402417-10
–
Measure dimension
A
of rear wheel unloaded. ( p. 42)
– With another person holding the motorcycle, the rider, wear-
ing full protective clothing, 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 again measures the distance between the rear
axle and marking SAG on the rear fender using the sag gauge.
–
Note down the value as dimension
C
.
Info
The riding sag is the difference between
measurements
A
and
C
.
– Check the riding sag.
Guideline
Riding sag (250 SX EU) 105 mm (4.13 in)
Riding sag (250 SX US) 105 mm (4.13 in)
Riding sag (All XC models) 105 mm (4.13 in)
» If the riding sag differs from the specified measurement:
– Adjust the riding sag. ( p. 45)
10.10 Adjusting the spring preload of the shock absorber
Caution
Risk of injury Parts of the shock absorber will move around if the shock absorber is detached incorrectly.
The shock absorber is filled with highly compressed nitrogen.
– Please follow the description provided. (Your authorized KTM workshop will be glad to help.)
Info
Before changing the spring preload, make a note of the present setting, e.g., by measuring the spring
length.
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 52)
– Remove the shock absorber. ( p. 61)
– After removing the shock absorber, clean it thoroughly.
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