Cadillac Wheels were the first production urethane skateboard wheels in 1973. Frank Nasworthy is credited with bringing the urethane wheel to skateboarding, almost as if he invented them. The history books and films are not very clear on how these wheels differed, if at all, from the preexisting urethane roller skate wheels. Madrid Skateboards is now the owner of Cadillac Skateboard Wheels.
