Just installed voigt risers to my 2020 R3 they simply slid in under the bars, did not need to make any adjustment to cable, no restriction in steering, 5 days to the front door. Not cheap but beautifully made, they also offer cable extenders but I did not need these
I am 6 2 and they are just far enough back, off for 1200 k ride this week will report back
I have a set of classic bars that I may bend up a bit and install if not happy