Me and a friend of mine are using IR sensors on the bike. We are also using them on the brakes and tires in the track (I only use them for brake discs). We also use telemetry to record the IR sensors and many other parameters like suspension travel, GPS, engine etc. The info from the IR sensors can be used to see how tire compound works in the specific track and conditions.
Well he is a bit crazy with the sensors. In his new bike GSXR 1000 2017 he will install three IR sensors on each tire , oil pressures, suspension pots, IR temps for brake discs and calipers and sooo many others that I cannot even remember.
Here is a video of him in Misano with some of the sensors showing