Kawasaki Kx125 vs Ktm Sx 125
Side-by-side comparison for used motorcycle buyers
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Kawasaki Kx125
Ktm Sx 125
Horsepower (hp)
38 hp
34 hp
Torque (Nm)
29 Nm
25 Nm
Top Speed (km/h)
110 km/h
110 km/h
Weight (kg) — lower is better
88 kg
98 kg
Type
Motocross
Motocross
Horsepower
~38 hp @ 11,500 rpm (2003–2005 final spec)
~34 hp @ 11,500 rpm (estimated for modern 2020+ era models)
Torque
~29 Nm @ 10,500 rpm (estimate for late-model spec)
~25 Nm @ 10,500 rpm (estimated)
Top Speed
~110 km/h (estimate — highly dependent on gearing and conditions)
~110 km/h (estimated; top speed varies significantly based on gearing and track conditions)
Weight
~88 kg (wet/curb weight, 2005 model)
~98 kg (wet/curb weight, based on 2020+ models)
Fuel
~4.0 L/100km or ~25 km/L (estimate — varies significantly with riding intensity; motocross use is higher consumption)
Estimated 4–6 L/100km (note: varies greatly depending on riding intensity; two-stroke motocross bikes are not typically measured by standard fuel economy metrics)
Fairing
No
No
Individual Reviews
Kawasaki Kx125
8.0/10
"A brilliant buy if you inspect carefully and ride hard."
Pros
+Razor-sharp chassis handling
+Lightweight, flickable frame
+Strong parts availability still
Cons
−Punishing if neglected
−Narrow, unforgiving powerband
−Fuel economy is terrible
Ktm Sx 125
8.5/10
"An uncompromising race tool that rewards preparation and serious skill."
Pros
+Razor-sharp race chassis
+Exceptional power-to-weight ratio
+Premium WP suspension
Cons
−High maintenance demands
−Brutal, unforgiving powerband
−Frequent top-end rebuilds
Top 10 Accessories
Picks that work on either bike.
