[peterKa]

I also had this issue with my brand new sas 1290 2020.- 2019 KTM 1290 SAR pulls right
My finding was after I measured wheel alignment with laser and swing pivot- rear axel was that the swingarm itself needed some adjustment. After some work by the dealer the offset in wheel alignment became much better. I think they re tightened the swingarm pivot. The last mm I fixed with rear axel adjustment. An really easy check you can do first is check that the rear wheel sprocket is aligned with the front sprocket. Use something straight, like a spirit-level.
Now my bike handles completely different. Easy steering and stable. Doesn't pull either. Before the bike was hard in turning left and pulled hard to right and felt difficult to handle in general. The front tire was worn out really fast also.

 

[peterKa]

Which dealer did you go to? I went to my closest (only) dealer here in the north, but they just scratched their heads and sighed.

I've sent you an PM