Does anyone know if its possible to add brazeon mounts for disk brakes to an older monocoque birdy, ideally ird buy the rear suspension arm and front lower cage arm with disk brake mounts from R&M but it doesnt seem possible to order any frame parts from the manufacturer.

The purpose would be to allow 451 20"' wheels to be swapped in as well as to use more aero rims for weekend racing but to return to the standard 18"s for a smaller fold wehn commuting in the week.

Any ideas, some old yahoo groups mentioned steve parry but i cant find any details on him and am unsure if he is still active.
Best Regards Maximus