11 TUNING THE CHASSIS 33
11.8 Checking the riding sag of the shock absorber
400990-10
– Measure distance A of rear wheel unloaded. ( p. 32)
– 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 80 mm (3.15 in)
» If the riding sag differs from the specified measurement:
–
Adjust the riding sag. x ( p. 34)
11.9 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. ( p. 37)
– Fold the seat up. ( p. 45)
–
Remove the shock absorber. x ( p. 44)
– After removing the shock absorber, clean it thoroughly.
401026-10
Main work
– Loosen screw 1.
– Turn adjusting ring 2 until the spring is no longer under tension.
Hook wrench (T106S)
– Measure the overall spring length while the spring is not under tension.
– Tighten the spring by turning adjusting ring 2 to measurement A.
Guideline
Spring preload
Comfort 8 mm (0.31 in)
Standard 8 mm (0.31 in)
Sport 8 mm (0.31 in)
Info
Depending on the static sag and/or the riding sag, it may be necessary to
increase or decrease the spring preload.
– Tighten screw 1.
Guideline
Screw, shock absorber adjusting ring M5 5 Nm (3.7 lbf ft)
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