Ducati Panigale V4 vs Harley-Davidson Fat Boy

The Ducati Panigale V4 (2027) and the Harley-Davidson Fat Boy (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 Ducati Panigale V4 is a sport bike with 1,103 cc, 215.1 hp and unlisted weight; the Harley-Davidson Fat Boy is a cruiser with 1,923 cc, 103.3 hp and 315 kg. Power-to-weight with the rider: 756.6 hp/ton versus 264.8 hp/ton. On this measure the Ducati Panigale V4 is 186% ahead.

In the simulation the Ducati Panigale V4 covers 0-100 km/h (speedometer) in 3.14 s and the Harley-Davidson Fat Boy in 3.54 s; the Ducati Panigale V4 is quicker by 0.41 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 36.4 m for the Ducati Panigale V4 (with ABS) and 49.1 m for the Harley-Davidson Fat Boy (ABS unknown, class assumption: no ABS). The Ducati Panigale V4 stops 12.7 m shorter. Calculated top speed: 299 km/h (manufacturer claim) versus 201 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 Ducati Panigale V4 and class-average calibration (no accepted model-specific road test) for the Harley-Davidson Fat Boy. Missing manufacturer data (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.