I bought the F6B 14" Sport Shield (tint w/ no vent). I think they originally called it the minus 2. I went with this size mainly because I reside in California. Our spring, summer and fall are very warm months which is why the stock shield works well in these months for me. I like the look of the stock shield and the breeze I get riding with it. Then, November through March, the F4 Custom Shield is what works best for me. Keeps me warm thus allowing me to ride year round. Anyway, hope that helps. There is talk of a slightly shorter windshield in the making. Shorter by 2 inches. If interested ask Don from F4 Customs. He's here on our forum.