Windscreen derived from competition. Its double height diminishes the air pressure to the helmet. Made of 2 or 3 mm high-impact acrylic, resistant and durable. Round finished edge on models from 2004 meet the standards for the German TUV. Edge trim is not necessary. Made of high-impact acrylic, giving each screen added strength and flexibility. 2 or 3 mm thickness helps absorb vibration at high speeds and offers resistance from cracking or scratching. All screens are developed using information from wind tunnel testi