Honda Wave RSX FI vs Kawasaki Z900

The Honda Wave RSX FI (2026) and the Kawasaki Z900 (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 Wave RSX FI is a cub / underbone with 109 cc, 8.7 hp and unlisted weight; the Kawasaki Z900 is a naked bike with 948 cc, 122.0 hp and 213 kg. Power-to-weight with the rider: 49.5 hp/ton versus 423.7 hp/ton. On this measure the Kawasaki Z900 is 755% ahead.

0-100 km/h (speedometer): Honda Wave RSX FI not reached (top simulated speed 88 km/h), Kawasaki Z900 3.13 s. In the 60-0 km/h brake test, braking distance without the 0.3 s reaction time is 18.5 m for the Honda Wave RSX FI (ABS unknown, class assumption: no ABS) and 15.7 m for the Kawasaki Z900 (with ABS). The Kawasaki Z900 stops 2.8 m shorter. The standard 60-0 test is used because one calculated top speed is below 110 km/h. Calculated top speed: 88 km/h (estimated from power and drag) versus 234 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 Wave RSX FI and model-specific parameters calibrated against published road tests for the Kawasaki Z900. 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.