A tricycle is formed of a front tube, a handlebar set fastened pivotally with the front tube, a front fork pivoted with the handlebar set, a front wheel pivoted to the front fork, two swiveling members fastened pivotally with the front tube, two footboards fastened with the swiveling members, and two rear wheels fastened pivotally to the underside of the rear end of the two footboards. The hologram element is provided with a hologram pattern including a splitting section for focus which splits light used for the detection of an FES and a splitting section for tracking which splits light used for the detection of a TES. A single, variable speed motor regulates the pumping rate of the pump.