KTM 450 SX-F

Maintenance specs for 1 variant of the KTM 450 SX-F — from 2003 to 2026.

2003–2026 KTM 450 SX-F

449cc Single-Cylinder DOHC Liquid-Cooled 4-Stroke MX (SX-F 450) · Chain

63 hp / 38 lb-ft

Weight10W-50

Capacity1.3 qt

Type5-Speed Manual (separate oil)

FluidMotorex Transmission Fluid 10W-40

Drain & fill0.74 qt

TypeMotorex Anti-Freeze (50/50 premix)

Capacity1.4 qt

TypeDOT 4

Tank1.9 gal

TypePremium 91

Front80/100-21

Rear110/90-19

Pressure (front)15 PSI

Pressure (rear)15 PSI

Oil change300 mi

Trans service300 mi

Coolant flush1,500 mi

Spark plugs1,500 mi

Timingchain (no scheduled replacement)

Air filter150 mi

Drive belt600 mi