Honda NX500 vs Honda SH125i

The Honda NX500 (2025) and the Honda SH125i (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 Honda NX500 is a adventure bike with 471 cc, 46.9 hp and 196 kg; the Honda SH125i is a scooter with 125 cc, 12.9 hp and 138 kg. Power-to-weight with the rider: 173.2 hp/ton versus 60.4 hp/ton. On this measure the Honda NX500 is 187% ahead.

In the simulation the Honda NX500 covers 0-100 km/h (speedometer) in 5.11 s and the Honda SH125i in 19.13 s; the Honda NX500 is quicker by 14.02 s. In the 60-0 km/h brake test, braking distance without the 0.3 s reaction time is 14.9 m for the Honda NX500 (with ABS) and 16.3 m for the Honda SH125i (with ABS). The Honda NX500 stops 1.4 m shorter. The standard 60-0 test is used because one calculated top speed is below 110 km/h. Calculated top speed: 152 km/h (estimated from power and drag) versus 97 km/h (manufacturer claim).

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 Honda NX500 and model-specific parameters calibrated against published road tests for the Honda SH125i. Open the interactive app (currently in Turkish) to watch the run side by side and change the load.