Here is a more modern oldie:
Randy Mamola.Not sure if this fits here, but who is the greatest rider who never won a championship in any GP Racing class?
I mean no 50/80/125/250/350/500/Moto3/Moto2/MotoGP championships at all. But, nearly there.
When I was looking (for other reasons) at Mika Kallio's history, he has two 2nd places in 125cc, one 2nd place in Moto2, and a 3rd place in 250cc. But, no championships at GP level. Is there anyone who beats that, without having a championship win?
This guy?A torrent with fifteen 500cc races from 1988 just appeared. Most of this collection are complete races. Naturally, you won't find HD videos there, but they are watchable.