Kawasaki KLE500 vs Yamaha R25

The Kawasaki KLE500 (2026) and the Yamaha R25 (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 KLE500 is a adventure bike with 451 cc, 44.8 hp and unlisted weight; the Yamaha R25 is a sport bike with 250 cc, 35.4 hp and 169 kg. Power-to-weight with the rider: 162.9 hp/ton versus 145.1 hp/ton. On this measure the Kawasaki KLE500 is 12% ahead.

In the simulation the Kawasaki KLE500 covers 0-100 km/h (speedometer) in 4.95 s and the Yamaha R25 in 6.40 s; the Kawasaki KLE500 is quicker by 1.46 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 41.4 m for the Kawasaki KLE500 (with ABS) and 40.0 m for the Yamaha R25 (ABS unknown, class assumption: no ABS). The Yamaha R25 stops 1.4 m shorter. Calculated top speed: 150 km/h (estimated from power and drag) versus 158 km/h (GPS measurement).

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 Kawasaki KLE500 and model-specific parameters calibrated against published road tests for the Yamaha R25. 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.