BMW S 1000 RR vs Honda CB125F

The BMW S 1000 RR (2025) and the Honda CB125F (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 BMW S 1000 RR is a sport bike with 999 cc, 206.5 hp and 198 kg; the Honda CB125F is a naked bike with 124 cc, 10.7 hp and 117 kg. Power-to-weight with the rider: 756.5 hp/ton versus 55.9 hp/ton. On this measure the BMW S 1000 RR is 1,254% ahead.

In the simulation the BMW S 1000 RR covers 0-100 km/h (speedometer) in 2.84 s and the Honda CB125F in 21.61 s; the BMW S 1000 RR is quicker by 18.77 s. In the 60-0 km/h brake test, braking distance without the 0.3 s reaction time is 13.1 m for the BMW S 1000 RR (with ABS) and 17.3 m for the Honda CB125F (ABS unknown, class assumption: no ABS). The BMW S 1000 RR stops 4.2 m shorter. The standard 60-0 test is used because one calculated top speed is below 110 km/h. Calculated top speed: 287 km/h (manufacturer claim) versus 100 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 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.