National Cycle VStream Windshield For Indian Chieftain / Roadmaster The VStream patented V shape pushes the wind vortex away from your head giving you a peaceful ride. Made from polycarbonate for greater impact strength up to 23x more than acrylic. Outstanding clarity for better optics on the road. Features: Made from polycarbonate Quantum hard coated for 10x additional abrasion protection 4.5mm thick Reduced wind noise Uses OEM hardware and stock mounting points