Ktm Sx 450 vs Kawasaki Kx 450
Side-by-side comparison for used motorcycle buyers
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Ktm Sx 450
Kawasaki Kx 450
Horsepower (hp)
63 hp
55 hp
Torque (Nm)
54 Nm
52 Nm
Top Speed (km/h)
145 km/h
145 km/h
Weight (kg) — lower is better
106 kg
110 kg
Type
Motocross
Motocross
Horsepower
~63 hp @ 9,500 rpm (estimated for modern 2020+ generation)
~55 hp @ 9,000 rpm (estimated; Kawasaki does not officially publish power figures — note: dyno results typically range 53–58 hp)
Torque
~54 Nm @ 7,000 rpm (estimated for modern 2020+ generation)
~52 Nm @ 7,500 rpm (estimated; official figures not published — note: best estimate based on dyno data)
Top Speed
~145 km/h (estimated; note: motocross bikes are not optimized for top speed, this is an approximate real-world figure)
~145 km/h (estimated; gearing and terrain dependent — note: best estimate, not manufacturer-specified)
Weight
~106 kg (wet/curb weight, varies slightly by model year)
110 kg (curb weight, 2023 model)
Fuel
~7–9 L/100km (estimated; highly variable depending on riding intensity — note: motocross bikes are not typically measured by fuel economy)
Estimated 6–9 L/100km (note: highly variable depending on riding intensity; off-road/motocross use is not standardized for fuel economy testing)
Fairing
No
No
Individual Reviews
Ktm Sx 450
8.5/10
"Extraordinary machine that ruthlessly punishes neglectful owners and rewards disciplined ones."
Pros
+Best-in-class power delivery
+Exceptional factory-grade suspension
+Lightweight chromoly frame
Cons
−Brutal mandatory maintenance schedule
−Unforgiving for intermediate riders
−Expensive genuine KTM parts
Kawasaki Kx 450
8.5/10
"A brilliant 450 that rewards experienced riders who buy smart."
Pros
+Factory suspension genuinely excellent
+Explosive yet manageable power
+Strong resale value retention
Cons
−Unforgiving if neglected
−Steep learning curve
−Consumables burn fast