Screens for a big dude
I'm a tall dude (6'7") and bought the KLR for distance riding - my neck is the main issue on the bike, so I've had a few screens in the process of finding one tall enough to keep the wind off my face.
I started with the givi smoke windscreen (can't link yet) which IMO looks crap off the bike but looks nice on it. Here's the bike with it on:
I took that about 1200 miles and it absolutely was not enough to get the wind over my head. Couldn't turn my head for a week. For a shorter rider it might work, but I had to go into a pretty extreme tuck to get under the bubble at speed - so I wouldn't recommend for anyone over 6'2" or so.
I replaced it with a MadStad rig in their biggest size (22" IIRC, maybe 24"). It rattles a bit, which I'm not in love with but I'm sure I can rig up some stabilization if it gets too annoying. Or probably will just get used to it and stop noticing. The adjustability and height are amazing. I'm not in love with the smoke though, and will probably trade for a clear screen - it can be a bit disorienting to switch from looking through the screen to directly at the road when looking around turns with the smoke. It's possible I could drop it a bit and look over, but I suspect it'll reduce the usefulness of the height. In any case, I think I'll stick with this one. Here it is on the bike: