Yamaha Exciter 155 VVA TCS vs Yamaha R25

The Yamaha Exciter 155 VVA TCS (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 Yamaha Exciter 155 VVA TCS is a cub / underbone with 155 cc, 18.2 hp and 124 kg; the Yamaha R25 is a sport bike with 250 cc, 35.4 hp and 169 kg. Power-to-weight with the rider: 91.7 hp/ton versus 145.1 hp/ton. On this measure the Yamaha R25 is 58% ahead.

In the simulation the Yamaha Exciter 155 VVA TCS covers 0-100 km/h (speedometer) in 10.46 s and the Yamaha R25 in 6.40 s; the Yamaha R25 is quicker by 4.06 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 46.8 m for the Yamaha Exciter 155 VVA TCS (with ABS) and 40.0 m for the Yamaha R25 (ABS unknown, class assumption: no ABS). The Yamaha R25 stops 6.8 m shorter. Calculated top speed: 115 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 Yamaha Exciter 155 VVA TCS and model-specific parameters calibrated against published road tests for the Yamaha R25. Open the interactive app (currently in Turkish) to watch the run side by side and change the load.