2019 KTM Duke 390 w/RapidBike Evo ECU piggyback
Actually, I now know what could have been the cause for lowered torque and as a result, top speed. I remember that after I came home from that trip my oil level was very low. It seems that my Duke burned close to a litre of oil on that log hwy trip (750km in the mountains) where I pushed the engine real hard. I did 140km/h top speed on the way back meaning that my oil was already low at the time. In addition, I didn’t change the air filter and it is quite dirty.140 km/h!!!??? Dude, somethin' must be wrong(?). I'm using 16/43, with stock ecu, 2019, and mine has no problem pulling right up to 100 mph... [er, 161km/h, by interpolation]. So what gives?
Not criticizing. Expressing concern.
Those two factors together probably robbed the engine of enough torque to limit the speed to 140km/h.