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Kawasaki Ninja ZX-10R vs Yamaha R25

ESTIMATED SIMULATION

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The Kawasaki Ninja ZX-10R (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 Kawasaki Ninja ZX-10R is a sport bike with 998 cc, 193.1 hp and 209 kg; the Yamaha R25 is a sport bike with 250 cc, 35.4 hp and 169 kg. Power-to-weight with the rider: 680.0 hp/ton versus 145.1 hp/ton. On this measure the Kawasaki Ninja ZX-10R is 369% ahead.

In the simulation the Kawasaki Ninja ZX-10R covers 0-100 km/h (speedometer) in 3.16 s and the Yamaha R25 in 6.40 s; the Kawasaki Ninja ZX-10R is quicker by 3.25 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 36.4 m for the Kawasaki Ninja ZX-10R (with ABS) and 40.0 m for the Yamaha R25 (ABS unknown, class assumption: no ABS). The Kawasaki Ninja ZX-10R stops 3.6 m shorter. Calculated top speed: 286 km/h (manufacturer claim) 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 simulationKawasaki Ninja ZX-10RYamaha R25
Classsport bikesport bike
Engine998 cc250 cc
Power193.1 hp35.4 hp
Wet weight209 kg169 kg
Power-to-weight (75 kg rider)680.0 hp/ton145.1 hp/ton
0-100 km/h (speedometer)3.16 s6.40 s
100-0 km/h braking distance36.4 m40.0 m
Top speed (calc.)286 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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