10
TUNING THE CHASSIS
29
10.7
Checking the static sag of the shock absorber
400989-10
–
Measure distance
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
.
Info
The static sag is the difference between measurements
and
.
–
Check the static sag.
Static sag (SX
‑
F EU)
30 mm (1.18 in)
Static sag (SX
‑
F USA)
30 mm (1.18 in)
Static sag (XC
‑
F)
30 mm (1.18 in)
» If the static sag is less or more than the specified value:
–
Adjust the spring preload of the shock absorber.
x
10.8
Checking the riding sag of the shock absorber
400990-10
–
Measure distance
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 remeasures 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 (SX
‑
F EU)
100 mm (3.94 in)
Riding sag (SX
‑
F USA)
100 mm (3.94 in)
Riding sag (XC
‑
F)
100 mm (3.94 in)
» If the riding sag differs from the specified measurement:
–
Adjust the riding sag.
x
10.9
Adjusting the spring preload of the shock absorber
x
Caution
Danger of accidents
Disassembly of pressurized parts can lead to injury.
–
The shock absorber is filled with high density nitrogen. Adhere to 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 length of the spring.
Preparatory work
–
Raise the motorcycle with the lift stand. (
–
Remove the manifold.
x
–
Remove the shock absorber.
x
