BOSCH - NYON HMI Redefining e-Biking: The Nyon HMI (Human-Machine Interface) all-in-one on-board computer combines navigation, e-Bike control, riding data and a host of other features in a single device. All riding data is visible at a glance: Speed, distance, route, cadence, GPS navigation and heart rate measurement in combination with a compatible chest strap. The 8 GB memory has sufficient space to store maps, saved routes and points of interest.