Puig Z-Racing Windscreen Aprilia Tuono 660 / V4 / V4 Factory The Puig Z-Racing screens are based on balancing and aggressive stance and comfort for the rider. Designed to be more aerodynamically efficient than stock with more protection for the rider. Features: Made of high impact acrylic, giving each screen added strength and flexibility 3mm thickness helps absorb vibration at high speeds, and offers resistance from cracking or scratching Optimized for better aerodynamics over the stock windscreen Developed using information from wind tunnel testing