Kawasaki Z900 vs Yamaha MT-25

The Kawasaki Z900 (2025) and the Yamaha MT-25 (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 Kawasaki Z900 is a naked bike with 948 cc, 122.0 hp and 213 kg; the Yamaha MT-25 is a naked bike with 250 cc, 35.4 hp and 166 kg. Power-to-weight with the rider: 423.7 hp/ton versus 146.9 hp/ton. On this measure the Kawasaki Z900 is 188% ahead.

In the simulation the Kawasaki Z900 covers 0-100 km/h (speedometer) in 3.13 s and the Yamaha MT-25 in 6.35 s; the Kawasaki Z900 is quicker by 3.22 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 43.7 m for the Kawasaki Z900 (with ABS) and 48.0 m for the Yamaha MT-25 (ABS unknown, class assumption: no ABS). The Kawasaki Z900 stops 4.3 m shorter. Calculated top speed: 234 km/h (manufacturer claim) versus 147 km/h (derived (GPS ratio)).

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.