Ball Seat vs Conical Seat................
I had an interesting problem pop up when I purchsed my R-38's from Ronal. They use a ball seat, so all my lug nuts had to use the ball seat.
When I tried to buy Locking Lug Nuts, no one made them with a ball seat. Everyplace I checked only sold Locking Lug Nuts with the conical seat.
My solution came with Stockton Wheel.
They have a ball seat adaptor ring they sold me for use with the conical seat Locking Lug Nuts.
If anyone knows of a ball seat Locking Lug Nuts, please tell me.<ul><li><a href="http://www.stocktonwheel.com/contacts.htm">http://www.stocktonwheel.com/contacts.htm</a</li></ul>