KTM 150 SX - 21.8 Fork Specifications

21 TECHNICAL DATA 128
21.8 Fork
21.8.1 125/150 SX EU
Fork part number 34.18.8P.01
Fork WP Performance Systems Upside down AER 48
Compression damping
Comfort 20 clicks
Standard 17 clicks
Sport 12 clicks
Rebound damping
Comfort 20 clicks
Standard 17 clicks
Sport 12 clicks
Air pressure 8.2 bar (119 psi)
Fork length 950 mm (37.4 in)
Oil capacity external mecha-
nism left
200
+40
−20
ml (6.76
+1.35
−0.68
fl. oz.) Fork oil (SAE 4) (48601166S1) ( p. 134)
Oil capacity external mecha-
nism right
200
+40
−20
ml (6.76
+1.35
−0.68
fl. oz.) Fork oil (SAE 4) (48601166S1) ( p. 134)
Grease capacity, left cartridge 11 ml (0.37 fl. oz.) Multi-purpose grease (00062010051) ( p. 135)
Oil capacity, right cartridge 380 ml (12.85 fl. oz.) Fork oil (SAE 4) (48601166S1) ( p. 134)
21.8.2 125/150 SX US
Fork part number 24.18.7P.51
Fork WP Performance Systems Up Side Down 4860 MXMA 4CS
Compression damping
Comfort 17 clicks
Standard 15 clicks
Sport 13 clicks
Rebound damping
Comfort 17 clicks
Standard 15 clicks
Sport 13 clicks
Spring length with preload spacer(s) 475 mm (18.7 in)
Spring rate
Weight of rider: 65… 75 kg (143… 165 lb.) 4.0 N/mm (22.8 lb/in)
Weight of rider: 75… 85 kg (165… 187 lb.) 4.2 N/mm (24 lb/in)
Weight of rider: 85… 95 kg (187… 209 lb.) 4.4 N/mm (25.1 lb/in)
Fork length 940 mm (37.01 in)
Oil capacity per fork leg 685 ml (23.16 fl. oz.) Fork oil (SAE 4) (48601166S1) ( p. 134)
21.8.3 250 SX EU
Fork part number 14.18.7O.03
Fork WP Performance Systems Upside down 4860 MXMA CC
Compression damping
Comfort 14 clicks
Standard 12 clicks
Sport 10 clicks
Rebound damping
Comfort 14 clicks
Standard 12 clicks