KTM  450 SX-F

450 SX-F
450 SX-F450 SX-F450 SX-F450 SX-F450 SX-F450 SX-F450 SX-F450 SX-F


The championship winning KTM 450 SX-F is a proven formula that is the industry benchmark. For 2019, this new machine takes the next step in efficient performance and easy handling. It is fitted with a newly designed, extremely compact, single overhead camshaft cylinder head, as well as the latest electronic fuel injection. Pushing out an unrivalled 63hp in the most effective way possible, this 450 cc is the fastest Motocross bike KTM has ever built.

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Design single cylinder, 4-stroke, SOHC, 4-Valve
Displacement 449.3 cm³
Bore 95 mm
Stroke 63.4 mm
Starting aid Electric starter
Engine lubrication Pressure circulation lubrication with two Eaton pumps
Primary gear ratio 31:76
Final drive 13:48
Cooling system Water cooling, permanent circulation of coolant by water pump
Clutch Wet multi-disc clutch DDS / Brembo hydraulics
Ignition system Contactless controlled fully electronic ignition with digital ignition adjustment


Frame Central tubular frame made from chrome molybdenum steel tubes
Forks WP-USD, AER 48, Ø 48 mm
Shock absorber WP shock absorber with linkage
Suspension travel Front 310 mm
Suspension travel Rear 300 mm
Brake system Disc brakes, brake calipers on floating bearings
Brake discs - diameter Front 260 mm
Brake discs - diameter Rear 220 mm
Chain 5/8 x 1/4"
Steering head angle 63.9°
Wheelbase 1,485±10 mm
Ground clearance unloaded 370 mm
Seat height unloaded 960 mm
Total fuel tank capacity approx. 7 l
Unleaded premium fuel (95 RON)
Weight without fuel, approx. 100.2 kg