American Racing AR89388512330 - Mainline - Gloss Black Machined (5x114.3 / 5x4.5)American Racing AR893 Mainline Wheels are made from one-piece cast aluminum and have six spoke design. What more American Racing Equipment was started by Romeo Palamides, an early drag racing innovator and grandfather of jet car racing, in 1959. One of the first American Racing wheels that were intended for the street was the aluminum Torq-Thrust, introduced in 1963. They could be considered to be the definitive aluminum hot rod wheel.