About Grind King

Grind King was founded in 1988 by skateboarder and inventor Donald Cassel, whose creation of the inverted kingpin forever changed how skateboard trucks perform. That single innovation went on to influence nearly every major truck brand that followed, establishing Grind King as a true pioneer in skateboard hardware.

From the beginning, Grind King has existed for one reason: to innovate with purpose. Every product was designed to solve real problems skaters face—improving performance, durability, and control without compromise.

Today, Grind King is entering a new chapter.

The brand has returned with a renewed focus on next-generation skate technology, developing trucks and hardware built for a new generation of skaters who demand more from their setup. More performance. More customization. More progression. This evolution is led by Donald Cassel himself, combining decades of engineering experience and skateboarding with fresh thinking and direct rider feedback.

That vision comes to life in The Locker Truck—a revolutionary design featuring seven entirely new engineering innovations never before seen in a skateboard truck. The Locker doesn’t just update the traditional truck; it redefines how a modern skate truck should look, feel, and perform.

The Grind King legacy continues.
Other trucks follow. Grind King invents.