Twitter. It's like watching the largest ever recorded tornado hit the largest ever box of frogs, ever.
Got to ride one of those many many years ago, not a Sheene bike obviously but it was a genuine "factory" bike with seemingly everything made of magnesium and the barrells were a completely different casting to a standard customer bike. How I wish I had taken up the offer to swap it for my TZ350 when it was offered. One of my biggest mistakes EVER!
Yep, also had a few laps round Mallory on a mates OW31 Yam. He paid £2K for it in 1982 and he's still got it.