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CFMoto 250NK vs Yamaha R25

ESTIMATED SIMULATION

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The CFMoto 250NK (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 CFMoto 250NK is a naked bike with 249 cc, 26.2 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: 111.2 hp/ton versus 145.1 hp/ton. On this measure the Yamaha R25 is 31% ahead.

In the simulation the CFMoto 250NK covers 0-100 km/h (speedometer) in 8.91 s and the Yamaha R25 in 6.40 s; the Yamaha R25 is quicker by 2.50 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 48.0 m for the CFMoto 250NK (ABS unknown, class assumption: no ABS) and 40.0 m for the Yamaha R25 (ABS unknown, class assumption: no ABS). The Yamaha R25 stops 8.0 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 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.

Estimated simulationCFMoto 250NKYamaha R25
Classnaked bikesport bike
Engine249 cc250 cc
Power26.2 hp35.4 hp
Wet weightno data169 kg
Power-to-weight (75 kg rider)111.2 hp/ton145.1 hp/ton
0-100 km/h (speedometer)8.91 s6.40 s
100-0 km/h braking distance48.0 m40.0 m
Top speed (calc.)115 km/h158 km/h

Data sources and calibration

Specifications: the sources below (manufacturer pages, plus road-test or spec sites where the manufacturer gives no figure). Acceleration, braking and top speed: Moto Kıyas physics simulation (power/torque curve, gearing, drag, traction and wheelie limits, ABS assumption), calibrated against published road tests where available. Estimated, not measured.

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