The 1221 AP3 configuration introduces concavity to the traditional 3-piece wheel. These wheels are more customizable than standard 3-piece wheels, with two center profiles to choose from depending on your desired look. Each AP3 set includes your choice of fully exposed hardware, 20|20 hardware or completely hidden hardware. The AP3 configuration is available in our Apex and Sport editions and is built from 6061-T6 aerospace grade forged aluminum.