To provide a front wheel clamping device of a motorcycle, which can clamp with pressure a lower side surface and an upper side surface of a motorcycle front wheel strongly with a toggle mechanism of a link, by moving a link fulcrum irrespective of sizes of a wheel diameter and a tire width of the uprightly installed motorcycle.

A lower side surface and an upper side surface of a front wheel are strongly clamped from both sides with a toggle mechanism of a link using a front wheel load of the motorcycle in such a way that a rack and pinion and a torque limiting mechanism are arranged to move the link fulcrum so as to follow the size of the front wheel width as the motorcycle is advanced, irrespective of the sizes of the wheel diameter and tire width of the motorcycle.