Dowco Revolution Fairing Windshield Bag 4725 Designed to fit a 3.5in. or taller fairing windshield, easy to install by loosening the screws that hold the windshield between the inner and outer fairing. The windshield bag is supported by a plastic back with alignment notches designed to fit around the windshield retaining screws. 21.25in.L x 2.25in.W x 6.5in.H