Grand Prix 250
Main Motorcycle: '18 Street Triple R
Join Date: Sep 2018
Other Motorcycle: '90 Honda VFR
Extra Motorcycle: '03 KTM 640 Adventure
Usual disclaimers about everyone being different, riding positions, etc etc.
It took 3-4 rides for me to feel good about where I had them positioned - and I agonized as I measured pre-purchase (the glass area is smaller than stock, the length of stalk and height are less) - but honestly, I feel they are much better for viewing on either side. The way I have them, I see only the smallest bit of my arm, and clearly to the side. I sometimes tuck my arm a bit in to see straight behind me (e.g. lanesplitting and unsure if there's a rider splitting behind me) but to check lanes for changes, or traffic behind me at speed they're a huge improvement. I'm about 5'10.
The stock mirrors were all kinds of wrong for me, compounded by, I don't think the bend in the stock handlebar is quite right either (for grip position/length/mirror mount). Before switching mirrors I did adjust the rotation of the handlebar a bit and it did help with the ergos, but not as much as replacing the mirrors. Rizomas are a real leap of faith, but in my case, I don't look back and think of the cost - I'm happy with them functionally and aesthetically (mostly - they're not perfect).