Checking The Basic Setting Of The Fork - KTM 125 SX Owner's Manual

TUNING THE CHASSIS

Checking the basic setting of the fork

10.11
Info
For various reasons, no exact riding sag can be determined for the forks.
Guideline
Spring rate (125/150 SX)
Weight of rider: 65... 75 kg (143...
165 lb.)
Weight of rider: 75... 85 kg (165...
187 lb.)
Weight of rider: 85... 95 kg (187...
209 lb.)
Spring rate (250 SX)
Weight of rider: 65... 75 kg (143...
165 lb.)
Weight of rider: 75... 85 kg (165...
187 lb.)
Weight of rider: 85... 95 kg (187...
209 lb.)
Spring rate (150 XC USA)
Weight of rider: 65... 75 kg (143...
165 lb.)
Weight of rider: 75... 85 kg (165...
187 lb.)
Weight of rider: 85... 95 kg (187...
209 lb.)
Spring rate (250/300 XC)
Weight of rider: 65... 75 kg (143...
165 lb.)
Weight of rider: 75... 85 kg (165...
187 lb.)
Weight of rider: 85... 95 kg (187...
209 lb.)
Info
The spring rate is shown on the outside of the spring.
–
Install the shock absorber.
–
Check the static sag of the shock absorber. (
–
Check the riding sag of the shock absorber. (
–
Adjust the rebound damping of the shock absorber. (
–
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.
401000-01
60 N/mm (343 lb/in)
63 N/mm (360 lb/in)
66 N/mm (377 lb/in)
66 N/mm (377 lb/in)
69 N/mm (394 lb/in)
72 N/mm (411 lb/in)
60 N/mm (343 lb/in)
63 N/mm (360 lb/in)
66 N/mm (377 lb/in)
66 N/mm (377 lb/in)
69 N/mm (394 lb/in)
72 N/mm (411 lb/in)
x ( p. 44)
p. 31)
p. 31)
33
p. 30)