my 2018 U Force came with a standard CF Moto roof and dealer supplied windshield (both installed at dealership), I noticed about 2 inches of space between the windshield and roof, didn't think to much about it. Trailered north at about 70 mph, got to my destination unloaded and took off and at 25mph and above the roof started flapping so bad that it was hitting the windshield and has a crack in roof right were they bolt the middle down. Had to stuff foam in between them to stop the flapping. I assume the speed on the highway must have got the roof flapping and weakened it to the point of cracking it. Talking with the dealer now. Anyone else have such a problem? NOTE the Z Force ECU worked perfectly, no hesitation and running great, CF Moto should admit this problem and fix ALL of them.