Hey guys and gals,
Just in case anyone else is planning this conversion but haven't yet gotten the steerer bearings from All Balls Bearings, they currently don't have a supplier that allows this conversion to happen. They told me that their supplier just redesigned the bearings and it no longer allows for any sort of modification but they are looking for a new source. So, at the moment, it appears that the only alternative is to machine down the R6 stem to accept the CB550 top bearing. Does anyone know if there's enough material for this to be done safely?