The invention relates to a tubeless mounted assembly for a cycle, more particularly for a bicycle, consisting of a rim and a tyre. The input detection unit detects the pattern of the input operation based on the position of the indicator on the touch panel, and decreases the frequency of execution of processing arranged to detect the input operation performed on the touch panel when an input operation performed on the touch panel is not detected over a specified time period. The aqueous mixture chemically alters the surface forming a chemically converted surface.