Harley-Davidson Nightster Special vs KTM 500 EXC-F

The Harley-Davidson Nightster Special (2025) and the KTM 500 EXC-F (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 Harley-Davidson Nightster Special is a cruiser with 975 cc, 88.5 hp and 225 kg; the KTM 500 EXC-F is a enduro bike with 511 cc, unlisted power and unlisted weight. Power-to-weight with the rider: 295.0 hp/ton versus no data.

In the simulation the Harley-Davidson Nightster Special covers 0-100 km/h (speedometer) in 3.17 s and the KTM 500 EXC-F in 4.06 s; the Harley-Davidson Nightster Special is quicker by 0.89 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 49.1 m for the Harley-Davidson Nightster Special (ABS unknown, class assumption: no ABS) and 51.5 m for the KTM 500 EXC-F (ABS unknown, class assumption: no ABS). The Harley-Davidson Nightster Special stops 2.3 m shorter. Calculated top speed: 180 km/h (estimated from power and drag) versus 158 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 Harley-Davidson Nightster Special and class-average calibration (no accepted model-specific road test) for the KTM 500 EXC-F. Missing manufacturer data (power, torque, weight) 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.