Harley-Davidson Fat Boy vs Honda Africa Twin Adventure Sports

The Harley-Davidson Fat Boy (2025) and the Honda Africa Twin Adventure Sports (2026) 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 Fat Boy is a cruiser with 1,923 cc, 103.3 hp and 315 kg; the Honda Africa Twin Adventure Sports is a adventure bike with 1,084 cc, 100.6 hp and 253 kg. Power-to-weight with the rider: 264.8 hp/ton versus 306.6 hp/ton. On this measure the Honda Africa Twin Adventure Sports is 16% ahead.

In the simulation the Harley-Davidson Fat Boy covers 0-100 km/h (speedometer) in 3.54 s and the Honda Africa Twin Adventure Sports in 3.08 s; the Honda Africa Twin Adventure Sports is quicker by 0.46 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 Fat Boy (ABS unknown, class assumption: no ABS) and 41.4 m for the Honda Africa Twin Adventure Sports (with ABS). The Honda Africa Twin Adventure Sports stops 7.7 m shorter. Calculated top speed: 201 km/h (estimated from power and drag) versus 202 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 class-average calibration (no accepted model-specific road test) for the Harley-Davidson Fat Boy and model-specific parameters calibrated against published road tests for the Honda Africa Twin Adventure Sports. Open the interactive app (currently in Turkish) to watch the run side by side and change the load.