10
TUNING THE CHASSIS
31
Guideline
Spring rate (SX
‑
F EU)
Weight of rider: 65… 75 kg (143…
165 lb.)
54 N/mm (308 lb/in)
Weight of rider: 75… 85 kg (165…
187 lb.)
57 N/mm (325 lb/in)
Weight of rider: 85… 95 kg (187…
209 lb.)
60 N/mm (343 lb/in)
Spring rate (SX
‑
F USA)
Weight of rider: 65… 75 kg (143…
165 lb.)
54 N/mm (308 lb/in)
Weight of rider: 75… 85 kg (165…
187 lb.)
57 N/mm (325 lb/in)
Weight of rider: 85… 95 kg (187…
209 lb.)
60 N/mm (343 lb/in)
Spring rate (XC
‑
F)
Weight of rider: 65… 75 kg (143…
165 lb.)
54 N/mm (308 lb/in)
Weight of rider: 75… 85 kg (165…
187 lb.)
57 N/mm (325 lb/in)
Weight of rider: 85… 95 kg (187…
209 lb.)
60 N/mm (343 lb/in)
Info
The spring rate is shown on the outside of the spring.
Finishing work
–
Install the shock absorber.
x
–
Install the manifold.
x
–
Install the main silencer. (
–
Check the static sag of the shock absorber. (
–
Check the riding sag of the shock absorber. (
–
Adjust the rebound damping of the shock absorber. (
–
Remove the motorcycle from the lift stand. (
10.11
Checking the basic setting of the fork
Info
For various reasons, no exact riding sag can be determined for the forks.
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.