That sound like something worth looking into, thanks for that.
Only been to one ‘big’ motorcycling race and that was when I was about 14, the 500cc World Championship at Silverstone at the height of the Barry Sheene/Kenny Roberts rivalry.
I recall Sheene retired early with a mechanical and Roberts walked it. Pretty sure it pissed down most of the day too. The wheelie king Dave Taylor did a lap of the circuit on his back wheel beforehand also. Nothing as spectacular as the bike drifting shows they put on now but was pretty cool at the time.