I’m 6’-1” with a 34” inseam. The stock shield put the air directly into my visor, so I preferred to ride my 2019 Tracer 900 GT with no shield at all over the stock shield.
But wanting some protection on cool mornings I ordered a Madstad shield. Their default size for my height was 24”, but using their suggested measuring method I came up with 22”. I ordered a 22” shield through Amazon for the free shipping. Mounted the screen and it was a little too short. It put the wind at the top of the helmet. So I used their exchange system which went quite smoothly and got the 24”.
With the 24” I couldn’t be happier. I can easily see over it and talk on the phone via Cardo at 70 mph, with the helmet visor open, without difficulty. I do have it at the steepest angle and highest setting, so a 26” would also have worked.
Now enjoying a nice quiet ride. Very happy with my purchase.