Tags : None

All of the RP series Royale S2s and a great many other Royale racers use an SKF BAH-0012 for the rear wheel bearing. I just found that the late ('79 thru '85 or thereabouts) 1500cc Fiat X1-9 uses the same bearing.

Though I have not confirmed this with actual bearings in my hands, the Royale front wheel bearing # crosses to the early ('74 thru '78) X1-9.