I have given up on the PowerBronze, I like the sport windshield they have, and thats about it, I have the two piece windscreen from them as well, about two months after i got it, the lower windscreen started to crack at one of the lower mounting holes to the bike, i drilled the end of the crack hoping to stop it, but it still cracked through the lower bolt holes to the bike and separated, but stayed in place thanks to the top bolts. I emailed PowerBronze and was pretty much told, sucks to be you, have a nice day. I also had a PowerBronze single mid size screen, it was a similar design to the base of the adjustable screen, so I measured it and drilled it and mounted it as a base, it was the same thickness as the original. I mounted the adjustable part, made sure everything was solid but not over done, and 3 months later, cracks forming on the lower mount holes again. That chunk of metal is to far up on the lower screen, and weighs to much