10 TUNING THE CHASSIS 32
– Remove the motorcycle from the lift stand. ( p. 37)
10.11 Adjusting the riding sag
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 37)
– Remove the shock absorber. ( p. 45)
– 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. 46)
– Check the free travel of the foot brake lever. ( p. 65)
– Check the static sag of the shock absorber. ( p. 30)
– Check the riding sag of the shock absorber. ( p. 31)
– Adjust the rebound damping of the shock absorber. ( p. 29)
– Remove the motorcycle from the lift stand. ( p. 37)
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.
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