KTM 50 SX 2012 - 10.6 Adjusting the Riding Sag

10 TUNING THE CHASSIS 25
10.6 Adjusting the riding sag x
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 27)
–
Remove shock absorber. x ( p. 34)
– After removing the shock absorber, clean it thoroughly.
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Main work
– Choose and mount a suitable spring.
Guideline
Spring rate (50 SX)
Weight of rider: 15… 25 kg (33…
55 lb.)
30 N/mm (171 lb/in)
Weight of rider (standard): 25…
35 kg (55… 77 lb.)
35 N/mm (200 lb/in)
Weight of rider: 35… 45 kg (77…
99 lb.)
40 N/mm (228 lb/in)
Spring rate (50 SX Mini)
Weight of rider: 15… 25 kg (33…
55 lb.)
65 N/mm (371 lb/in)
Weight of rider (standard): 25…
35 kg (55… 77 lb.)
75 N/mm (428 lb/in)
Weight of rider: 35… 45 kg (77…
99 lb.)
85 N/mm (485 lb/in)
Info
The spring rate is shown on the outside of the spring.
Smaller weight differences can be compensated by changing the spring
preload.
Finishing work
–
Install shock absorber. x ( p. 34)
– Remove the motorcycle from the lift stand. ( p. 27)
– Check the static sag of the shock absorber. ( p. 23)
– Check the riding sag of the shock absorber. ( p. 24)
– Adjust the rebound damping of the shock absorber. ( p. 23)
10.7 Handlebar position
00
0
B
B
0
0
A
A
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On the upper triple clamp, there are 2 holes at a distance of A to each other.
Distance A between holes 15 mm (0.59 in)
The holes on the handlebar support are placed at a distance of B from the center.
Distance B between holes 3.5 mm (0.138 in)
The handlebar supports can be mounted in 4 different positions.
10.8 Adjusting handlebar position x
Warning
Danger of accidents Handlebar breakage.
– If the handlebar is bent or straightened it will cause material fatigue, and the handlebar can break. Always replace handle-
bar.