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KTM 390 Duke vs Suzuki DR-Z4S

ESTIMATED SIMULATION

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The KTM 390 Duke (2025) and the Suzuki DR-Z4S (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 Suzuki DR-Z4S is a enduro bike with 398 cc, unlisted power and 151 kg. Power-to-weight with the rider: 184.9 hp/ton versus no data.

In the simulation the KTM 390 Duke covers 0-100 km/h (speedometer) in 5.48 s and the Suzuki DR-Z4S in 4.98 s; the Suzuki DR-Z4S is quicker by 0.50 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 46.8 m for the Suzuki DR-Z4S (with ABS). The KTM 390 Duke stops 3.1 m shorter. Calculated top speed: 167 km/h (test measurement) versus 145 km/h (estimated from power and drag).

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 the KTM 390 Duke and class-average calibration (no accepted model-specific road test) for the Suzuki DR-Z4S. Missing manufacturer data (power, torque) is estimated by class regression, not measured. Open the interactive app (currently in Turkish) to watch the run side by side and change the load.

Estimated simulationKTM 390 DukeSuzuki DR-Z4S
Classnaked bikeenduro bike
Engine399 cc398 cc
Power44.4 hpno data
Wet weight165 kg151 kg
Power-to-weight (75 kg rider)184.9 hp/tonno data
0-100 km/h (speedometer)5.48 s4.98 s
100-0 km/h braking distance43.7 m46.8 m
Top speed (calc.)167 km/h145 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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