Lol, "investigation". No investigation needed. Everyone there knows it's the most dangerous race you can possibly participate in, by a large margin. "The root cause was found to be doing 160+mph with zero runoff, and buildings or cliffs lining the street for basically the entire race". Report concluded.
Organisers of a motorcycle race on the Isle of Man in the Irish Sea will investigate the reasons behind five competitors dying in crashes in the 2022 event.
www.espn.com
It's crazy and also fucking awesome to me that people still do this. Sad to see people die every year though, two of the deaths was a father/son duo :-(