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Kawasaki Z900 vs Yamaha R7
ESTIMATED SIMULATION
Run the comparison →The Kawasaki Z900 (2025) and the Yamaha R7 (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 Kawasaki Z900 is a naked bike with 948 cc, 122.0 hp and 213 kg; the Yamaha R7 is a sport bike with 689 cc, 72.4 hp and 189 kg. Power-to-weight with the rider: 423.7 hp/ton versus 274.3 hp/ton. On this measure the Kawasaki Z900 is 54% ahead.
In the simulation the Kawasaki Z900 covers 0-100 km/h (speedometer) in 3.13 s and the Yamaha R7 in 3.41 s; the Kawasaki Z900 is quicker by 0.28 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 43.7 m for the Kawasaki Z900 (with ABS) and 40.0 m for the Yamaha R7 (ABS unknown, class assumption: no ABS). The Yamaha R7 stops 3.7 m shorter. Calculated top speed: 234 km/h (manufacturer claim) versus 202 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.
| Estimated simulation | Kawasaki Z900 | Yamaha R7 |
|---|---|---|
| Class | naked bike | sport bike |
| Engine | 948 cc | 689 cc |
| Power | 122.0 hp | 72.4 hp |
| Wet weight | 213 kg | 189 kg |
| Power-to-weight (75 kg rider) | 423.7 hp/ton | 274.3 hp/ton |
| 0-100 km/h (speedometer) | 3.13 s | 3.41 s |
| 100-0 km/h braking distance | 43.7 m | 40.0 m |
| Top speed (calc.) | 234 km/h | 202 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.
- Kawasaki Z900: www.kawasaki.com.tr, www.motorradundreisen.de
- Yamaha R7: hyperdrive.yamaha-motor.eu, www.motorradundreisen.de