I was, now sporting an 848 wheel and discs. Wheel spacers were 30mm to replace speedo drive, the other side was a cut down bearing. 61905 6905 2RS Thin Section Sealed Deep Groove Ball Bearing 25x42x9mm | eBay
Part Deux - bigger balls. Appears to be the day to be revealing ones projects. ompus: Big, big thanks to Andy FE @final_edition for the machining of spacers, not only for the swinger, but the slipper. @andyb Thanks for the swinger...