KTM 150 SX 2017 User Manual

10 TUNING THE CHASSIS 37
Guideline
Spring rate (All 125/150 models)
Weight of rider: 65… 75 kg (143…
165 lb.)
36 N/mm (206 lb/in)
Weight of rider: 75… 85 kg (165…
187 lb.)
39 N/mm (223 lb/in)
Weight of rider: 85… 95 kg (187…
209 lb.)
42 N/mm (240 lb/in)
Spring rate (250 SX 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 (250 SX 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 (All XC models)
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. 51)
– Remove the motorcycle from the lift stand. ( p. 42)
– Check the static sag of the shock absorber. ( p. 35)
– Check the riding sag of the shock absorber. ( p. 35)
– Adjust the rebound damping of the shock absorber. ( p. 33)
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 operation, the fork legs
need to be bled.

KTM 150 SX 2017 Specifications

General

Brand	KTM
Model	150 SX 2017
Category	Motorcycle
Language	English