>>1991775Majority of real velos don't have windows at all, but those versions that do , the windows are really small.
And if they really are the helmet visors, you could still design a window , where visor is turned upside down, and it would be forward slanting.
Of course the paint makes a big difference too.
Would be interesting to see what can be done with IR cooling paint, if/when you could buy it:
https://www.youtube.com/watch?v=N3bJnKmeNJYAlthough there already exist IR reflecting paint (Used for houses with IR heating panels) and it would be interesting to see if it makes a difference compared to normal white paint.