We never want to start a race with a dirty bike. That's why the Road, Tri, and CX Bike Cover by Zeal Pro is essential for transporting our rides. The Zeal Pro bike bag is constructed from neoprene and nylon for protection and has been tested on road bikes from 48 to 63 centimeters. Easily transport bikes on a car's rear hitch rack and protect it from the weather on the way to a race or on long trips.