cowspotter wrote on 07/20/08 at 18:20:30: ... planning on doing some higher speed riding in the future (highway) and i currently have no windshield. Any suggestions. .... I'm 5'8" .... Just something to cut down on the blast i'm taking at 70mph.
You have a WIDE range of options. The minimalist approach is the National Cycle Flyscreen:
9" wide, 9" high, claimed to be for the Sportster but fits just fine. It cuts down the blast, but that's all it does. Still get wind in the face, bugs in the teeth, but the pressure on the body is reduced so that 70 mph is no effort at all. This is my Summer windscreen.
On a long trip, hours and hours of wind in the face tends to cause windburn. When the temperature drops you want to slap those icy fingers aside. Hence my Touring/Winter windscreen, another National Cycle, this one is their Street Shield. I'm also 5'8", 5'10" in my boots, and as you can see, this 17" tall shield is still well below eye level. Even this small it does the job I ask of it, which is to keep the wind off the face/neck. At highway speeds the wind ruffles my hair, but is out of my eyes -- can actually ride without any other eye protection.
They also make a Street Shield EX, an inch taller and 2.75" wider; and the Deflector 2" shorter and 1.5" skinnier. The question you need to answer is how much wind you wish to give up. The far end of the wind blocking is represented by the Wife's New Beetle.