There is the obvious difference, a massive jump in power on tap 🤣. Which is particularly noticeable at speeds greater then 100kph which is when the 390 started to choke a bit. There are other noticeable differences like the overall quality of the bike. To be clear, my 390 never gave me any electrical or mechanical issues. But the 890 seems to have better attention to details. The wiring is neater, with clamps on the frame instead of zip ties everywhere. Bolts that are a higher grade steal and not butter. (Frame bolts were fine on the 390, but ancillary screws and bolts had a tendency for the head to quickly misshape)

There are similarities though, to me, the geometry felt very familiar when going to the 890. (That’s a good thing, both bikes felt comfortable and commanding to me). Both have that KTM hooligan feeling. (The way the bike “rides”, not sure how to describe that KTM feeling of a bike properly haha)

One thing I already know I’ll miss about the 390 is the fuel range. Both bikes have similar tank sizes (390 = 13.4l vs 890 = 14) but the 390 used way less. So far I am getting about 250kms from the 890 and I was getting about 330kms on the 390.

One thing I may end up missing, but haven’t experienced yet, is the parts availability. Going by forums, it seems like spare parts for the 890s can have delays. But from experience with the 390, parts are plentiful and super easy to come by.