Yamaha R25 (2025)

The Yamaha R25 (2025) is listed in the Moto Kıyas database as a sport bike motorcycle with a 250 cc engine. The stored version is “Standart manuel”. According to manufacturer data it makes 35.4 hp at 12,000 rpm and 22.6 Nm, with a wet weight of 169 kg. With a 75 kg rider the power-to-weight ratio is 145.1 hp/ton.

The Moto Kıyas physics model estimates 0-100 km/h (speedometer reading) in 6.40 s; because speedometers over-read, the true target is about 91.5 km/h. In a 100-0 km/h brake test it needs about 40.0 m of braking distance, or 48.4 m including a 0.3 s reaction time (ABS unknown, class assumption: no ABS). Calculated top speed is 158 km/h (GPS measurement). Among the 10 sport bike models in the database it ranks 8 of 10 for simulated 0-100 km/h and 8 of 10 for power-to-weight.

These figures are an estimated simulation, not a road-test measurement: flat dry asphalt, no wind, one 75 kg rider and no passenger. The model uses model-specific parameters calibrated against published road tests. Technical data comes from the sources listed below. In the app the results change with rider weight, a passenger, a wet surface or a slope. Use the button to open the interactive comparison app (currently in Turkish) with this motorcycle selected, change the rider weight or pick a rival.