Abstract: A wheel load measurement system mountable upon a wheel rim. The system includes a sensor body with an inboard ring connectable to the wheel rim, an outboard ring axially-spaced from the inboard ring and connectable to a hub adapter and a plurality of beams extending between the inboard ring and the outboard ring. A plurality of sensors, each fixed to an external surface of one of the beams, provides a signal indicating at least one of three principal forces and three principal moments experienced by the sensor body. In dual wheel mounts, an inboard and an outboard sensor body are coupled to a common hub adapter. The sensors of the inboard sensor body provide measurements for the inboard wheel, while the sensors of the outboard sensor body provide measurements for the outboard wheel.