‘Slappy Hour 56mm/99A’ by Speedlab Wheels. The Slappy Hour 56mm/99A Jason Adams Pro model wheel is a part of the Slappy Hour wheel series. The series started with the Slappy Hour 54mm/99A as a guest model for legendary skateboarder Jason ‘The Kid’ Adams. Once Jason joined the Speedlab Wheels team, it made sense to do a series of wheels with different sizes representing the other curb colors. These blue/white horizontal split color wheels have a 35mm overall width & 23mm contact patch. The 99A durometer is great for street & transition, providing control and softer landings on rough terrain. These wheels have rounded conical cuts on each side to provide a highly functional profile & shape made from the best formulas in the world for ultimate speed & control. Grab a set & strike hard! Artwork by Jason Adams (front graphic) & Alex Hagen (back graphic).