I'm currently riding with 19" windshield and no fangs. About half my riding is 70-80 mph. 3/4 helmet. Pretty comfy. The only problem is it is real easy to accidentally ease up to 85-90 mph.

I have the fangs, but currently they are off the bike as they need a little grinding to clear my tank (which has a 1.5" lift). There is a noticeable difference in amount of air on upper thighs and body when using the fangs. Coldest ride last winter was 35F with fangs and boots, jeans, and chaps. The front of the upper legs got cold enough that I wished I'd added thermals.

 

Leather pros make nice lower fairings, but there expensive. I have had them on my heritage 3 years and have never taken them off

 

Not for me. I put on the HD wind deflectors and the buffeting decreased by probably 90%. Then I got a good deal on a Reckless batwing cuz I just had to have one
The wind deflectors work better IMO. The biggest difference I noticed is I don't get the blast of air when I put my feet on the crash bar highway pegs with the batwing on. I do like the batwing but not sure if I'm going to keep it and get it painted to match the bike. Like I said, I got a good deal on it and always to try one. Not sure it belongs on a Heritage though.

 

If you decide to get a fairing for your Harley look at these from Reckless. I was very happy with mine.Shipped fast and answered all my questions. Loved having a good radio on my bike.
http://www.recklessmotorcycles.com/index.html

 

Sounds like a touring bike is in your future my friend.

 

Are you referring to lowers as engine guard lowers or fangs? I ask because I never heard about a 50 degree limitation on fangs.

 

He is talking about those covers that go around crash bars, like the real old days! I have a set real cheap, like new!