The Topeak DeFender FX Front Fender is designed for mountain bikes with suspension forks. It comes in two halves. The front half is higher than the back. It attaches to the fork via a quick release that fits under the fork crown. On and off in seconds. Made from injection-molded nylon. The fender is 23" long by 3. 5" wide by 6" tall. The weight is 180g.