Hardened 3mm backside lower outer hinge pins are installed through the back uprights and locked with self-locking peanuts. This concept helps to ensure that suspension pins won't ever come out during racing and moreover it helps to ensure that the play involving the hands and uprights won't change. The upright holder concept reinforces the holding of upright and prevents the pin or upright from becoming disconnected in crashes.
CNC-machined from high-grade steel, temperature addressed for greatest strength, minimum wear and longest life. Pins function incorporated hex head to enable modification using a typical hex wrench.