I've got 3 or 4 bikes that I'd use them in, it's the disc/rotor offset and the width of the hub that's the issue with the front wheel in particular. I know they don't fit Triumph T595 forks, GSXR Slingshot USD forks and they wont work with ZX6R forks.Invest in spacers and bearings and they'll fit a lot of things. It'd be easier to ask about what bike you're wanting to put them in.
I've only ever seen that on Gen1 Busas to be honest but it gives me something else to google!R1 and GSXR1k wheels are commonly swapped into Busa's. Would stand to reason that it could go the other way around too.
Appreciated man, I think I'm a bit far away though! I'm gonna have to find some trips/yokes with 214mm centres which is only TL and Busa I think, may as well go radial while I'm there!I've got plenty of trips and stems if ya need em. Have a set of forks too but I'm like 85% sure I'm gonna use them.