Abstract: Embodiments of the disclosure relate to devices for controlling the pressure of bicycle tire. The devices generally include a casing configured to be housed inside a bicycle wheel and in which are arranged: a measurement unit comprising at least one sensor capable of measuring a pressure of the bicycle tire and producing a signal indicative of the value of the pressure, a transmission unit electrically connected to the measurement unit and capable of transmitting the signal to an external display, and a battery. The casing includes an opening passing through the casing, from an upper face to a lower face, the opening presenting at least one part flaring from its lower face towards the upper face, so as to define a slope adapted to fit a flared support, corresponding to a foot of the valve of the wheel.