Racing motorcycles is only scary when things are about to go very wrong. That other shit is scary from start to finish. If you're normal, you can be terrified for as long as you stand there. No breaks. For what? Fuck that.
Peterborough liftlock. I work just down the road from it. https://en.wikipedia.org/wiki/Peterborough_Lift_Lock Pretty cool to watch. Would like to ride it up and down someday.