2021 890r (5k, 1/2 yr) owner here. my 790 had some small and major problems. coolant leaking - connector/cyclinderhead changed + thermostate. oil leak near head gasket. camshafts (intake) was worn out (material fault) + oil problem there too - new camshafts (both), new cylinderhead, new valves, new oil sprayer.

This is perfectly normal, especially if the outside temperature is above 30 degrees. I was in Madrid and I know how heavy the traffic there is. If you can not move more than 60-80 km/h for ะฐ longer time, then you can not cool the engine properly. Fans do not do miracles, they only help to blow/cool the radiator faster.

Power comes courtesy of the same 799cc double over head cam parallel twin motor first introduced in the KTM 790 Duke in 2018 but with but a bit snatchy and has reliability issues. Ride quality
Same issue each time, hereโ€™s the scenario: Been riding approx 30 minutes, and as Iโ€™m shifting from 4-5 and blipping the throttle, the motor cuts off. Electrical still functioning. 1st breakdown resolution: replaced ECU. 2nd breakdown resolution: reset ECU. 3rd breakdown resolution: updated mapping, reset adaptation values, reset
KTM reliability issues aside, the Duke 790 is an extremely torque happy bike, and would be hard to learn proper throttle control, and clutch management on. One whiskey throttle or accidental clutch dump, and you're probably going down. It's not even like a 600cc supersport where "theoretically", you could stay low in the rpms so you don't have
XSR900 or 790 Duke Looking to move to a newer bike, currently on a 990 Supermoto and really like it but finding it a little rough around the edges with a slightly snatchy throttle and backlash in the chain/cush rubbers that make off/on throttle riding rather tedious.
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ktm 790 duke reliability issues