Turn it clockwise to tighten the trucks, getting tighter turning. Turn it counter-clockwise to loosen the trucks, getting a softer turning feel. Make sure you tighten the trucks in very small increments (perhaps a quarter of a turn at a time before checking the board again), because a little bit of turning can affect it a lot. [3] X Expert Source Jon DepoianSkateboarding Instructor Expert Interview. 5 June 2020.
The nut that holds the trucks is called the kingpin. It has a strip of nylon on top called a locking nylon, which should always be at least flush. Otherwise, if the nut rises above the kingpin, the locking nylon won’t be attached and the trucks will eventually loosen and fall apart while you’re riding. [5] X Expert Source Jon DepoianSkateboarding Instructor Expert Interview. 5 June 2020.
Generally, tighter pins provide more resistance on turns, key for high-speed skating. Looser pins have a more forgiving feel on turns and landings. [6] X Research source If your trucks are looser, you can turn simply by leaning on your toes or heels. [7] X Expert Source Jon DepoianSkateboarding Instructor Expert Interview. 5 June 2020.
While not difficult, many skaters have this done at a local skate shop for the convenience.
High or Low Kingpin: Higher pins are best for grinds, manuals, and other tricks. A lowered kingpin is best for popping ollies and kickflips. Wider Wheels: Most wheels are standard, but heavier riders might want wider trucks, as they distribute the added weight better for smoother control. [9] X Research source
Higher trucks can make it harder, however, to grind. [10] X Research source