A track assembly may have a chain assembly including a plurality of track links, a traction assembly including track shoes secured to the plurality of track links, a drive sprocket, an idler assembly including an idler and a mount, and a roller assembly including a plurality of rollers and a roller frame. A wear monitoring system may have a wear sensor configured to generate a signal indicative of a current position of a first component of the track assembly, and a controller in communication with the at least one wear sensor, the controller being configured to determine an amount of wear experienced by the track assembly based on the signal. The first component may be configured such that wear of at least a second component causes the first component to move to the current position from a previous position.