Bike HUD is a heads-up display from Bike Systems. 
Bike-HUD's in-helmet display can be fitted to most helmets and provides a clear, distraction-free view of speed, engine revs, gear selection and indicators - all without having to look down at the instruments.

       Commuting                         Track-day                         Touring
The display on the helmet is connected with a cable to an onboard computer on the bike. There are three operating modes, commuting, track days and touring. The price will be roughly 470-$640.