KTM 390 Duke vs TVS Jupiter 125

The KTM 390 Duke (2025) and the TVS Jupiter 125 (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 KTM 390 Duke is a naked bike with 399 cc, 44.4 hp and 165 kg; the TVS Jupiter 125 is a scooter with 125 cc, 8.1 hp and unlisted weight. Power-to-weight with the rider: 184.9 hp/ton versus 40.8 hp/ton. On this measure the KTM 390 Duke is 354% ahead.

In the simulation the KTM 390 Duke covers 0-100 km/h (speedometer) in 5.48 s and the TVS Jupiter 125 in 38.88 s; the KTM 390 Duke is quicker by 33.40 s. In the 60-0 km/h brake test, braking distance without the 0.3 s reaction time is 15.7 m for the KTM 390 Duke (with ABS) and 17.9 m for the TVS Jupiter 125 (ABS unknown, class assumption: no ABS). The KTM 390 Duke 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: 167 km/h (test measurement) versus 91 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. 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.