Slappy Curb Killer ST1 Inverted Skateboard Trucks

Inverted Kingpin - An inverted kingpin means the threads are in the trucks, meaning that even after prolonged grinding, you will always be able to tighten or loosen your trucks.

Note - Every skate truck brand represents their sizing a little differently, so it's easy to get confused. Take a look at this graphic and then reference the size chart.