I've ordered hubs and rims for the crazy bike of Christian, the "Gun", with 650c front wheel.
I also bought a traditional fork, sold as for 26" wheels, but it doesn't fit the "Campagnolo Vento" in 650c size, so I tried a 24x1-1/8 wheel and it's quite perfect, but with a too wide rim. I think that a 520 ETRTO size will fit properly. Anyway I need another fork for the Gun for 26" wheels, and I would like to try to cut and weld a 28" fork and to reduce the rake (I'm working on now!).
I'm always waiting for the belt form the Gates, it seems to be a mission impossible... hope to have in September. But i ride a little brakeless with the chain: it is a bit rigid, not comfortable, with a very overlap and I don't feel very good with 165mm cranks. the good thing is that the rear stay it's like it was never cut and screwed!
Parallel to the Gun project, we thought to an opposite bike, with a road frame and huge wheels. And that is rim and clincher...! this will be the "use-less" bike. Who will skid with that?