Initially, Pioneer’s Expanded Sensor Network (ESN) system evaluates a bicyclist’s body position and pedaling technique. In its second generation, the system focuses on two metrics: biomechanical input (form and function) from the rider and the rider’s power output, creating the an analysis tool to provide comprehensive data for bike fitters and cycling coaches to improve rider performance. The 2017 version improves on what was presented last year by eliminating the sensors required to capture form and replacing them with a motion capture system: two cameras combined with Pioneer’s proprietary ESN computer analysis program). This enables the system to be used with any bike and reduces overall cost to the user. More info is available from Pioneer about its power meter system.