Compare Motorcycles
Kawasaki Kx 450
Ktm Sx 450
Type
Motocross
Motocross
Horsepower
~55 hp @ 9,000 rpm (estimated; Kawasaki does not officially publish power figures — note: dyno results typically range 53–58 hp)
~63 hp @ 9,500 rpm (estimated for modern 2020+ generation)
Torque
~52 Nm @ 7,500 rpm (estimated; official figures not published — note: best estimate based on dyno data)
~54 Nm @ 7,000 rpm (estimated for modern 2020+ generation)
Top Speed
~145 km/h (estimated; gearing and terrain dependent — note: best estimate, not manufacturer-specified)
~145 km/h (estimated; note: motocross bikes are not optimized for top speed, this is an approximate real-world figure)
Weight
110 kg (curb weight, 2023 model)
~106 kg (wet/curb weight, varies slightly by model year)
Fuel
Estimated 6–9 L/100km (note: highly variable depending on riding intensity; off-road/motocross use is not standardized for fuel economy testing)
~7–9 L/100km (estimated; highly variable depending on riding intensity — note: motocross bikes are not typically measured by fuel economy)
Fairing
No
No