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KTM 390 Duke vs Yamaha XMAX 250

ESTIMATED SIMULATION

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The KTM 390 Duke (2025) and the Yamaha XMAX 250 (2025) are compared with the same Moto Kıyas physics model under identical conditions: flat dry asphalt, no wind, a 75 kg rider and no passenger. The KTM 390 Duke is a naked bike with 399 cc, 44.4 hp and 165 kg; the Yamaha XMAX 250 is a scooter with 250 cc, 22.4 hp and 183 kg. Power-to-weight with the rider: 184.9 hp/ton versus 86.8 hp/ton. On this measure the KTM 390 Duke is 113% ahead.

In the simulation the KTM 390 Duke covers 0-100 km/h (speedometer) in 5.48 s and the Yamaha XMAX 250 in 11.65 s; the KTM 390 Duke is quicker by 6.16 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 43.7 m for the KTM 390 Duke (with ABS) and 45.2 m for the Yamaha XMAX 250 (with ABS). The KTM 390 Duke stops 1.5 m shorter. Calculated top speed: 167 km/h (test measurement) versus 126 km/h (GPS measurement).

All values are an estimated simulation, not road-test measurements. Technical data comes from the sources listed below; the model uses model-specific parameters calibrated against published road tests for both. Open the interactive app (currently in Turkish) to watch the run side by side and change the load.

Estimated simulationKTM 390 DukeYamaha XMAX 250
Classnaked bikescooter
Engine399 cc250 cc
Power44.4 hp22.4 hp
Wet weight165 kg183 kg
Power-to-weight (75 kg rider)184.9 hp/ton86.8 hp/ton
0-100 km/h (speedometer)5.48 s11.65 s
100-0 km/h braking distance43.7 m45.2 m
Top speed (calc.)167 km/h126 km/h

Data sources and calibration

Specifications: the sources below (manufacturer pages, plus road-test or spec sites where the manufacturer gives no figure). Acceleration, braking and top speed: Moto Kıyas physics simulation (power/torque curve, gearing, drag, traction and wheelie limits, ABS assumption), calibrated against published road tests where available. Estimated, not measured.

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