Many thanks for the info Rob and the offer of fabrication.
Sorry to hear you're not yet up to speed... How's that musical instrument coming on?
It's just a showy thing to mount a piece of carbon tube in, so if we can't find 28.6mm tube, then we'll have to think about some spacers for 22mm.
Cheers Jerry I figured adapters would be available for two sizes of bar.
Sorry to be so mysterious..