The Aera RF-1 is a cold forged, machined axle and kingpin, ultra high-end production truck. It comes stocked with Hardcore Bushings, and is sold fully assembled. This truck is stronger than machined or CNC varieties with nearly the same level of precision so there are many advantages. The unique pivot and pivot cup allows the truck to steer deeper while also being more stable. Cold forging is the process of stamping a hardened aluminum material with 30,000lb of pressure - this nets a very precise part, and also one that is stronger since the material flows into its final shape.