Checking The Riding Sag Of The Shock Absorber; Adjusting Spring Preload Of The Shock Absorber - KTM 450 EXC-R EU Owner's Manual

MAINTENANCE WORK ON CHASSIS AND ENGINE

Checking the riding sag of the shock absorber

Adjusting spring preload of the shock absorber

Danger
Danger of accidents The shock absorber is under high pressure.
The shock absorber is filled with highly compressed nitrogen, so never dismantle the shock absorber or carry out any main-
tenance on it yourself.
Info
Before changing the spring preload, make a note of the present setting, e.g., by measuring the length of the spring.
2 2
1 1
A A
Measure distance
With another person holding the motorcycle, sit on the saddle with full protective
clothing in a normal sitting position (feet on footrests) and bounce up and down a
few times until the rear suspension levels out.
0 0 A A
The other person now has to measure the distance between the rear axle and a
fixed point.
Make a note of the value as measurement
Info
The riding sag is the difference between measurements
Check the riding sag.
Riding sag
» If the riding sag differs from the specified measurement:
C C
Adjust the riding sag. (
400222-10
x
Remove shock absorber. (
After removing the shock absorber, clean it thoroughly.
Loosen screw
Turn adjusting ring
Combination wrench (50329080000)
Hook wrench (T106S)
Measure the overall spring length when not under tension.
Tighten the spring by turning adjusting ring
Specification
Spring preload
Standard
Info
Depending on the static sag and/or the riding sag, it may be necessary to
increase or decrease the spring preload.
Tighten screw
Specification
Screw, shock absorber adjusting ring
400216-10
Installing shock absorber. (
of rear wheel unloaded. (
.
105 mm (4.13 in)
P. 36)
P. 36)
.
until the spring is no longer under tension.
9 mm
.
M6
P. 36)
P. 34)
and .
to measurement .
5 Nm (3.7 lbf ft)
35