CFMoto 250NK vs Harley-Davidson Nightster Special

The CFMoto 250NK (2026) and the Harley-Davidson Nightster Special (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 CFMoto 250NK is a naked bike with 249 cc, 26.2 hp and unlisted weight; the Harley-Davidson Nightster Special is a cruiser with 975 cc, 88.5 hp and 225 kg. Power-to-weight with the rider: 111.2 hp/ton versus 295.0 hp/ton. On this measure the Harley-Davidson Nightster Special is 165% ahead.

In the simulation the CFMoto 250NK covers 0-100 km/h (speedometer) in 8.91 s and the Harley-Davidson Nightster Special in 3.17 s; the Harley-Davidson Nightster Special is quicker by 5.74 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 48.0 m for the CFMoto 250NK (ABS unknown, class assumption: no ABS) and 49.1 m for the Harley-Davidson Nightster Special (ABS unknown, class assumption: no ABS). The CFMoto 250NK stops 1.1 m shorter. Calculated top speed: 115 km/h (estimated from power and drag) versus 180 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 both. Open the interactive app (currently in Turkish) to watch the run side by side and change the load.