By model year
KTM 450 SX-F
2024 to 2027
4 model-year records side by side. A row is compared only where manual pages print the value; spec-sheet figures are shown but not judged.
On the manual pages
6 different13 the same5 printed differently3 not compared
Different on the manual pages
"Not compared" means fewer than two records have the value from a manual page; it says nothing about whether the bike changed. "Printed differently" marks descriptions (the fork, the oil, pressures with printed conversions) that the manuals word differently; read both before assuming a change.
| Spec | Manual pages | 2024 | 2025 | 2026 | 2027 |
|---|---|---|---|---|---|
| Stock front sprocket | Same on the manuals | 13TOwner's manual p. 154 | 13TOwner's manual p. 140 | 13TOwner's manual p. 151 | 13TOwner's manual p. 153 |
| Stock rear sprocket | Same on the manuals | 51TOwner's manual p. 154 | 51TOwner's manual p. 140 | 51TOwner's manual p. 151 | 51TOwner's manual p. 153 |
| Chain pitch | Same on the manuals | 520Owner's manual p. 154 | 520Owner's manual p. 140 | 520Owner's manual p. 151 | 520Owner's manual p. 153 |
| Front tire | Same on the manuals | 80/100-21 51M TTOwner's manual p. 155 | 80/100-21 51M TTOwner's manual p. 141 | 80/100-21 51M TTOwner's manual p. 151 | 80/100-21 51M TTOwner's manual p. 154 |
| Rear tire | Different on the manuals | 110/90-19 62M TTOwner's manual p. 155 | 110/90-19 62M TTOwner's manual p. 141 | 110/90-19 62M TTOwner's manual p. 151 | 120/80-19 62M TTOwner's manual p. 154 |
| Fork | Printed differently | WP XACT AEROwner's manual p. 154 | WP XACT AEROwner's manual p. 140 | WP XACT AEROwner's manual p. 150 | WP XACT AER (air fork)Owner's manual p. 155 |
| Fork travel | Same on the manuals | 310 mm (12.2 in)Owner's manual p. 154 | 310 mm (12.2 in)Owner's manual p. 140 | 310 mm (12.2 in)Owner's manual p. 150 | 310 mm (12.2 in)Owner's manual p. 152 |
| Shock travel | Same on the manuals | 300 mm (11.8 in)Owner's manual p. 154 | 300 mm (11.8 in)Owner's manual p. 140 | 300 mm (11.8 in)Owner's manual p. 150 | 300 mm (11.8 in)Owner's manual p. 152 |
| Stock shock spring rate | Not comparedBlank in a record | Not yet verified | Not yet verified | Not yet verified | 45 N/mmOwner's manual p. 158 |
| Static sag, bike only | Not comparedBlank in a record | Not yet verified | Not yet verified | Not yet verified | 35 mm (1.4 in)Owner's manual p. 158 |
| Race sag, rider on | Not comparedBlank in a record | Not yet verified | Not yet verified | Not yet verified | 105 mm (4.1 in)Owner's manual p. 158 |
| Engine oil spec | Printed differently | SAE 10W/50Owner's manual p. 154 | SAE 10W/50Owner's manual p. 140 | 10W/50 fully syntheticOwner's manual p. 150 | SAE 10W/50 fully syntheticOwner's manual p. 152 |
| Engine oil capacity (capacities - engine: engine oil) | Same on the manuals | 1200 ml (40.6 fl oz)Owner's manual p. 154 | 1200 ml (40.6 fl oz)Owner's manual p. 140 | 1200 ml (40.6 fl oz)Owner's manual p. 150 | 1200 ml (40.6 fl oz)Owner's manual p. 152 |
| Coolant capacity | Same on the manuals | 950 ml (32.1 fl oz)Owner's manual p. 154 | 950 ml (32.1 fl oz)Owner's manual p. 140 | 950 ml (32.1 fl oz)Owner's manual p. 150 | 950 ml (32.1 fl oz)Owner's manual p. 152 |
| Fuel capacity | Same on the manuals | 7.2 L (1.90 gal)Owner's manual p. 154 | 7.2 L (1.90 gal)Owner's manual p. 140 | 7.2 L (1.90 gal)Owner's manual p. 152 | 7.2 L (1.90 gal)Owner's manual p. 154 |
| Fork oil | Same on the manuals | Not yet verified | Not yet verified | Fork oil (48601166S1) (SAE 4): right outer assembly 240 ml (8.12 fl. ozUS); left outer assembly 240 ml (8.12 fl. ozUS); right cartridge 380 ml (12.85 fl. ozUS)Owner's manual p. 154 | Fork oil (48601166S1) (SAE 4): right outer assembly 240 ml (8.12 fl. ozUS); left outer assembly 240 ml (8.12 fl. ozUS); right cartridge 380 ml (12.85 fl. ozUS)Owner's manual p. 156 |
| Brake fluid | Different on the manuals | DOT 4 / DOT 5.1Owner's manual p. 103 | DOT 4 / DOT 5.1Owner's manual p. 92 | DOT 4 / DOT 5.1Owner's manual p. 100 | DOT 5.1Owner's manual p. 101 |
| Coolant type | Different on the manuals | High-grade, silicate-free coolant with corrosion inhibitor additive for aluminum motors; antifreeze protection to at least −25 °C (−13 °F)Owner's manual p. 165 | High-grade, silicate-free coolant with corrosion inhibitor additive for aluminum motors; antifreeze protection to at least −25 °C (−13 °F)Owner's manual p. 148 | Coolant; antifreeze protection to at least: −25 °C (−13.0 °F)Owner's manual p. 150 | Coolant; antifreeze protection to at least: −25 °C (−13.0 °F)Owner's manual p. 152 |
| Fuel octane | Same on the manuals | Super unleaded (ROZ 95)Owner's manual p. 154 | Super unleaded (ROZ 95)Owner's manual p. 140 | Super unleaded (ROZ 95)Owner's manual p. 152 | Super unleaded (ROZ 95)Owner's manual p. 154 |
| Idle speed | Different on the manuals | 2,200 … 2,300 rpmOwner's manual p. 151 | 2,200 … 2,300 rpmOwner's manual p. 137 | 2,200 rpm … 2,300 rpm (36.67 Hz … 38.33 Hz)Owner's manual p. 149 | 2,200 rpm … 2,300 rpm (36.67 Hz … 38.33 Hz)Owner's manual p. 151 |
| Valve clearance | Different on the manuals | Intake at: 20 °C (68 °F) 0.10 … 0.15 mm (0.0039 … 0.0059 in); Exhaust at: 20 °C (68 °F) 0.12 … 0.17 mm (0.0047 … 0.0067 in)Owner's manual p. 151 | Intake at: 20 °C (68 °F) 0.10 … 0.15 mm (0.0039 … 0.0059 in); Exhaust at: 20 °C (68 °F) 0.12 … 0.17 mm (0.0047 … 0.0067 in)Owner's manual p. 137 | Intake at: 20 °C (68.0 °F) 0.10 mm … 0.15 mm (0.0039 in … 0.0059 in); Exhaust at: 20 °C (68.0 °F) 0.12 mm … 0.17 mm (0.0047 in … 0.0067 in)Owner's manual p. 149 | Intake at: 20 °C (68.0 °F) 0.10 mm … 0.15 mm (0.0039 in … 0.0059 in); Exhaust at: 20 °C (68.0 °F) 0.12 mm … 0.17 mm (0.0047 in … 0.0067 in)Owner's manual p. 151 |
| Tire pressure (off-road) | Printed differently | 1.0 bar (15 psi) front and rearOwner's manual p. 154 | 1.0 bar (15 psi) front and rearOwner's manual p. 140 | 1.0 bar (14.5 psi) front and rearOwner's manual p. 151 | 1.0 bar (14.5 psi) front and rearOwner's manual p. 153 |
| Chain slack | Printed differently | 58 … 61 mm (2.28 … 2.4 in)Owner's manual p. 87 | 58 … 61 mm (2.28 … 2.4 in)Owner's manual p. 77 | 58 mm … 61 mm (2.28 in … 2.40 in)Owner's manual p. 88 | 58-61 mm (2.28-2.40 in)Owner's manual p. 89 |
| Spark plug and gap | Printed differently | NGK LMAR9AI-10, gap 1.0 mm (0.039 in)Owner's manual p. 151 | NGK LMAR9AI-10, gap 1.0 mm (0.039 in)Owner's manual p. 137 | NGK LMAR9AI-10, gap 1.0 mm (0.039 in)Owner's manual p. 150 | NGK LMAR9AI-10, gap 1.0 mmOwner's manual p. 152 |
| Seat height | Same on the manuals | 958 mm (37.7 in)Owner's manual p. 155 | 958 mm (37.7 in)Owner's manual p. 141 | 958 mm (37.7 in)Owner's manual p. 151 | 958 mm (37.7 in)Owner's manual p. 153 |
| Wheelbase | Same on the manuals | 1493 mm (58.8 in)Owner's manual p. 155 | 1493 mm (58.8 in)Owner's manual p. 140 | 1493 mm (58.8 in)Owner's manual p. 151 | 1493 mm (58.8 in)Owner's manual p. 153 |
| Weight (weight without fuel approx.) | Different on the manuals | 102.6 kg (226 lb)Owner's manual p. 155 | 102.6 kg (226 lb)Owner's manual p. 141 | 103.2 kg (228 lb)Owner's manual p. 151 | 103.2 kg (228 lb)Owner's manual p. 153 |