Provided herein is a variable ratio pedal assembly for a vehicle for operating a push rod of a brake system, for example. The assembly includes at least one activation link connected via a pivot tube to an elongated lever structure of the pedal arm, an input link for connection to the push rod to activate the brake system that is operatively connected to the activation link, and an intermediate link connected to the input link and a vehicle bracket. The intermediate link pivots relative to the input link and the vehicle bracket, resulting in a variation in angle between the input link and the intermediate link. The variation in angle between the input link and the intermediate link creates a ratio that varies as the pedal arm is moved.