On a cast wheel? Remind your passenger to wear a hockey helmet, mouth piece and padded clothing when doing the twisties......
"Honest yer honor.....I was trying to get more grip out of my tires by going wider.....but Iwas too cheap to buy the right wheels.....so I chingered up these crappy POS Rivieras that everyone said were shit as-is and made them shittier by shaving the centers....."
Not that there was anything wrong with that.....