I am using a 19" clear Jurock windshield on my FLSTSE. I saw a lot of folks responding about changing their windshield and headlight to the FatBoy module, but I didn't want to give up the Convertible front fairing so I opted for the Jurock windshield. Even once you decide to get a Jurock you'll need to determine best height. I drew some lines 1" apart on a piece of cardboard and experimented with height. The trade off is blocking wind and getting bug coverage with your desire to have to view the road through a windshield. I was concerned the taper of a 21" would create a viewing issue so I opted for a 19" which has been great for me. I am 5'11" tall so I can comfortably see over the screen yet it is tall enough to block the majority of wind. It took all the helmut shaking out of my ride which has been tremendously better. I'm still hunting for a tree light that will work with the fairing, but that is another thread.