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Kawasaki Z900 vs RKS Neon125
ESTIMATED SIMULATION
Run the comparison →The Kawasaki Z900 (2025) and the RKS Neon125 (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 RKS Neon125 is a scooter with 125 cc, 9.3 hp and unlisted weight. Power-to-weight with the rider: 423.7 hp/ton versus 49.5 hp/ton. On this measure the Kawasaki Z900 is 757% ahead.
0-100 km/h (speedometer): Kawasaki Z900 3.13 s, RKS Neon125 not reached (top simulated speed 84 km/h). In the 60-0 km/h brake test, braking distance without the 0.3 s reaction time is 15.7 m for the Kawasaki Z900 (with ABS) and 17.9 m for the RKS Neon125 (ABS unknown, class assumption: no ABS). The Kawasaki Z900 stops 2.2 m shorter. The standard 60-0 test is used because one calculated top speed is below 110 km/h. Calculated top speed: 234 km/h (manufacturer claim) versus 84 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 Kawasaki Z900 and class-average calibration (no accepted model-specific road test) for the RKS Neon125. Open the interactive app (currently in Turkish) to watch the run side by side and change the load.
| Estimated simulation | Kawasaki Z900 | RKS Neon125 |
|---|---|---|
| Class | naked bike | scooter |
| Engine | 948 cc | 125 cc |
| Power | 122.0 hp | 9.3 hp |
| Wet weight | 213 kg | no data |
| Power-to-weight (75 kg rider) | 423.7 hp/ton | 49.5 hp/ton |
| 0-100 km/h (speedometer) | 3.13 s | not reached (top simulated speed 84 km/h) |
| 60-0 km/h braking distance | 15.7 m | 17.9 m |
| Top speed (calc.) | 234 km/h | 84 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
- RKS Neon125: www.rksmotor.com.tr, www.rksmotor.com.tr