Double Bubble version. The base of the screen keeps the original curving and an extra streamlining protects the rider’s helmet. 50 years experience in the motorcycle screen Screens are made in PMMA, of high quality (Altuglas, Plexiglas, Perspex) or optionally in Altuglas XL EL 50 with good shock resistance The height of the Secdem screens is designed for optimal efficiency for a rider of average height. The product images shown are for illustration purposes only and may not be an exact representation of the product.