Honda CB125F vs Honda CRF250 Rally

The Honda CB125F (2025) and the Honda CRF250 Rally (2026) 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 Honda CB125F is a naked bike with 124 cc, 10.7 hp and 117 kg; the Honda CRF250 Rally is a enduro bike with 249 cc, 24.1 hp and 153 kg. Power-to-weight with the rider: 55.9 hp/ton versus 105.9 hp/ton. On this measure the Honda CRF250 Rally is 89% ahead.

In the simulation the Honda CB125F covers 0-100 km/h (speedometer) in 21.61 s and the Honda CRF250 Rally in 7.61 s; the Honda CRF250 Rally is quicker by 13.99 s. In the 60-0 km/h brake test, braking distance without the 0.3 s reaction time is 17.3 m for the Honda CB125F (ABS unknown, class assumption: no ABS) and 16.9 m for the Honda CRF250 Rally (with ABS). The Honda CRF250 Rally stops 0.4 m shorter. The standard 60-0 test is used because one calculated top speed is below 110 km/h. Calculated top speed: 100 km/h (manufacturer claim) versus 123 km/h (estimated from power and drag).

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 the Honda CB125F and class-average calibration (no accepted model-specific road test) for the Honda CRF250 Rally. Open the interactive app (currently in Turkish) to watch the run side by side and change the load.