Good wind-screen for a bicycle? I recently constructed my own windshield for my bicycle using Lexan and wood. It works great but it is hand-made thing and I might be willing to buy a premade one that is curved (mine has a 90 degree angle).

But is there a good one available?
Zzipper makes fairings for upright bikes.

I haven't used a Zzipper or Windwrap fairing myself, but they're well regarded by the people in the forums at bentrideronline.com , who I've gotten good advice from about 2 recumbents I've owned.

Windwrap is sold by t-cycle.com/collections/windwrap-fairings and they're made for recumbents, but the smaller XT and XT mini might fit an upright. It looks like most of of the mounts are being redesigned at the moment.