KTM 450 SMR Motorcycle User Manual


 
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MAINTENANCE WORK ON CHASSIS AND ENGINE 24
Adjusting spring preload of the shock absorberx
Danger
Danger of accidentsThe shock absorber is under high pressure.
The shock absorber is filled with highly compressed nitrogen, so never dismantle the shock absorber or carry out any main-
tenance on it yourself.
Info
Before changing the spring preload, make a note of the present setting, e.g., by measuring the length of the spring.
Remove shock absorber. ( P. 25)
After removing the shock absorber, clean it thoroughly.
400216-10
Loosen screw.
Turn adjusting ring
until the spring is no longer under tension.
Combination wrench (50329080000)
Hook wrench (T106S)
Measure the overall spring length when not under tension.
Tighten the spring by turning adjusting ring
to measurement.
Specification
Spring preload 11mm (0.43in)
Tighten screw
.
Specification
Screw, shock absorber adjusting ring M6 5Nm (3.69lbfft)
Installing shock absorber. ( P. 25)
Adjusting riding sagx
Remove shock absorber. ( P. 25)
After removing the shock absorber, clean it thoroughly.
Choose and fit a suitable spring.
Specification
Spring rate
Weight of rider: 65… 75kg (143.3… 165.34lb.) 76N/mm (433.97lb/in)
Weight of rider: 75… 85kg (165.34… 187.39lb.) 80N/mm (456.81lb/in)
Weight of rider: 85… 95kg (187.39… 209.44lb.) 84N/mm (479.65lb/in)
Info
The spring rate is shown on the outside of the spring.
Installing shock absorber. ( P. 25)
Check the static sag of the shock absorber. ( P. 23)
Adjust the rebound damping of the shock absorber. ( P. 22)