Researching motorcycles

I’ve recently finished my latest Casey Click mystery (working title “Race For It”) but find I need more motorcycle action. I’ve watched numerous races, primarily in the location used in the book, the Isle of Man, but it’s hard to watch as a spectator and represent on paper the actual feelings of racing. I’ve interviewed one racer, but I’m not sure I’m willing to climb aboard to get a sense of those breakneck speeds. Any suggestions?