Best camera for motorsports atm is the Garmin VIRB Ultra 30... and by a long mile! Especially if you ride an Euro bike which usually allows you to easily hook up an OBDII sensor and etc. The camera has an internal 10Hz GPS which as fast as most good lap timers and with the OBD II sensor enabled it not only records but overlays A TON of info into your video. Its software gives you lots and lots of different templates so you can pick the one that suits you best.

Here is an example of what I'm talking about:



Again, all that straight off the camera with almost no setup other than hooking up the OBD2 sensor. Even if you don't have the sensor, it will still give you lots more information than the gopro... and saves you from having to sync up gps data with the video and etc.