http://www.idsfa.net/miata/lugnuts/page1.jpghttp://www.idsfa.net/miata/lugnuts/page2.jpgThere are many cars that run around with no contact betwen the hubs and wheels. Miata guys seem to have no issues at all. I assure you, wheel studs are NOT a shear-loaded member! Stazi says so, and most people here believe him, since he designs this stuff for a living. Check out the new and old HC rings threads for more info. There's one thing Stazi, Weargle and I all agree on, and have from the beginning: once the wheels are on, the studs bear no shear loads, whether rings are there or not!