TUNING THE CHASSIS 10
45
Guideline
Spring rate (SX‑F EU)
Weight of rider: 65 …
75 kg (143 … 165 lb.)
39 N/mm (223 lb/in)
Weight of rider: 75 …
85 kg (165 … 187 lb.)
42 N/mm (240 lb/in)
Weight of rider: 85 …
95 kg (187 … 209 lb.)
45 N/mm (257 lb/in)
Spring rate (SX‑F US)
Weight of rider: 65 …
75 kg (143 … 165 lb.)
39 N/mm (223 lb/in)
Weight of rider: 75 …
85 kg (165 … 187 lb.)
42 N/mm (240 lb/in)
Weight of rider: 85 …
95 kg (187 … 209 lb.)
45 N/mm (257 lb/in)
Spring rate (XC‑F US)
Weight of rider: 65 …
75 kg (143 … 165 lb.)
39 N/mm (223 lb/in)
Weight of rider: 75 …
85 kg (165 … 187 lb.)
42 N/mm (240 lb/in)
Weight of rider: 85 …
95 kg (187 … 209 lb.)
45 N/mm (257 lb/in)
Info
The spring rate is shown on the outside of the spring.
Finishing work
– Install the shock absorber. ( p. 61)
– Check the free travel of the foot brake lever. ( p. 88)
– Check the static sag of the shock absorber. ( p. 42)
– Check the riding sag of the shock absorber. ( p. 43)
– Adjust the rebound damping of the shock absorber. ( p. 41)
– Remove the motorcycle from the lift stand. ( p. 50)
10.12 Checking the basic setting of the fork
Info
For various reasons, no exact riding sag can be determined for the fork.
401000-01
– Smaller differences in the rider's weight can be compensated
for by the fork air pressure.
– However, if the fork frequently bottoms out (hard end stop on
compression), the fork air pressure must be increased, within
the specified values, to avoid damage to the fork and frame.
– If the fork feels unusually hard after extended periods of oper-
ation, the fork legs need to be bled.
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