Kawasaki Ninja 1100SX SE vs RKS RZ125

The Kawasaki Ninja 1100SX SE (2026) and the RKS RZ125 (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 Ninja 1100SX SE is a touring bike with 1,099 cc, 134.1 hp and unlisted weight; the RKS RZ125 is a sport bike with 125 cc, 14.5 hp and unlisted weight. Power-to-weight with the rider: 409.9 hp/ton versus 63.8 hp/ton. On this measure the Kawasaki Ninja 1100SX SE is 542% ahead.

In the simulation the Kawasaki Ninja 1100SX SE covers 0-100 km/h (speedometer) in 3.30 s and the RKS RZ125 in 13.42 s; the Kawasaki Ninja 1100SX SE is quicker by 10.11 s. In the 100-0 km/h brake test, braking distance without the 0.3 s reaction time is 41.0 m for the Kawasaki Ninja 1100SX SE (with ABS) and 36.4 m for the RKS RZ125 (with ABS). The RKS RZ125 stops 4.6 m shorter. Calculated top speed: 219 km/h (estimated from power and drag) versus 125 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 class-average calibration (no accepted model-specific road test) for both. Missing manufacturer data (weight) is estimated by class regression, not measured. Open the interactive app (currently in Turkish) to watch the run side by side and change the load.