KTM 250 SX-F 2016, Owner'S Manual

Page: 36 / 118

10 TUNING THE CHASSIS
34
–
Check the free travel of the foot brake lever. ( p. 68)
–
Remove the motorcycle from the lift stand. ( p. 39)
10.11 Adjusting the riding sag
Preparatory work
–
Raise the motorcycle with a lift stand. ( p. 39)
–
Remove the shock absorber. ( p. 47)
–
After removing the shock absorber, clean it thoroughly.
B00292-10
Main work
–
Choose and mount a suitable spring.
Guideline
Spring rate (SX
‑
F EU)
Weight of rider: 65… 75 kg (143…
165 lb.) 42 N/mm (240 lb/in)
Weight of rider: 75… 85 kg (165…
187 lb.) 45 N/mm (257 lb/in)
Weight of rider: 85… 95 kg (187…
209 lb.) 48 N/mm (274 lb/in)
Spring rate (SX
‑
F US)
Weight of rider: 65… 75 kg (143…
165 lb.) 42 N/mm (240 lb/in)
Weight of rider: 75… 85 kg (165…
187 lb.) 45 N/mm (257 lb/in)
Weight of rider: 85… 95 kg (187…
209 lb.) 48 N/mm (274 lb/in)
Spring rate (XC
‑
F US)
Weight of rider: 65… 75 kg (143…
165 lb.) 42 N/mm (240 lb/in)
Weight of rider: 75… 85 kg (165…
187 lb.) 45 N/mm (257 lb/in)
Weight of rider: 85… 95 kg (187…
209 lb.) 48 N/mm (274 lb/in)
Info
The spring rate is shown on the outside of the spring.
Finishing work
–
Install the shock absorber. ( p. 48)
–
Check the free travel of the foot brake lever. ( p. 68)
–
Check the static sag of the shock absorber. ( p. 32)
–
Check the riding sag of the shock absorber. ( p. 33)
–
Adjust the rebound damping of the shock absorber. ( p. 31)
–
Remove the motorcycle from the lift stand. ( p. 39)
10.12 Checking the basic setting of the fork (SX
‑
F US, XC
‑
F US)
Info
For various reasons, no exact riding sag can be determined for the fork.
401000-01
–
As with the shock absorber, smaller differences in the rider's weight can be com-
pensated by the spring preload.
–
However, if the fork is often overloaded (hard end stop on compression), harder
springs must be fit to avoid damage to the fork and frame.