A fender structure for bicycles and particularly a fender structure installable
by users and adaptable to various sizes of the bicycles according to users' requirements
includes at least a front connecting plate located at the front end of a fender,
a rear connecting plate located at the rear end of the fender, and at least one
interconnecting plate located between the front connecting plate and the rear connecting
plate. The connecting plates have respectively a front coupling section and a rear
coupling section engageable with each other. Users may assemble and adjust the
fender in various shapes, lengths, colors and angles according to their requirements.
It may be retracted, assembled and detached easily, and has a great versatility
and applicability.