For 700C Wheel. The DeFender RC11 is a stylish rear fender designed for road racing bikes. It quickly straps to the seatpost for protection from road spray and grime and easily removed in seconds. The unique DuaLink adjustment allows you to optimize the fender position on any road frame size or shape. The RC11 is made of high impact plastic weighing only 117g and the highly polished underside prevents dirt buildup. Fits tires up to 700 x 25c.