KTM 990 Adventure AUS/UK Owner's Manual page 196

TECHNICAL DATA - FORK
Medium (standard)
Hard
Fork length
Air chamber length
Fork oil per fork leg 655 ml (22.15 fl. oz.)
4.8 N/mm (27.4 lb/in)
5.0 N/mm (28.6 lb/in)
935 mm (36.81 in)
+30 +1.18
100 mm (3.94 in)
−20 −0.79
Fork oil (SAE 5) ( p. 203)
194