A parking brake operating lever is arranged to allow a rider to operate the operating lever without leaning forward to a large extent, while securely avoiding an inadvertent operation. An operating mechanism for a parking brake is provided to a position, covered with a front cowl, of a right-side main pipe, below a tank cover. The operating lever is positioned to be partly exposed from a lower end portion of the side surface of the front cowl. Since the operating lever is positioned in a vicinity of the front end portion of a seat, the operating lever is easy to operate. Concurrently, since the most part of the operating lever is covered with the front cowl, an inadvertent operation is avoided.