The founders of Hammerking are the force behind the toughest one-day off-road race on the planet: King of The Hammers. King of The Hammers takes place each year in February, on public lands in Johnson Valley, CA. The race has evolved from 12 teams racing for bragging rights and a case of beer, to more than 150 teams competing before thousands of fans both live and online. Hammerking established a racing class known as the Ultra4 class. The defining characteristic of this class is that all cars must be capable of 4-wheel drive. Beyond that, the class is unlimited, this means that these cars come in all shapes and sizes and are capable of speeds over 100+ MPH and still contain gear ratios as low as 100 to 1 for technical rock crawling.
To build this class and give these cars and their drivers a chance to showcase their unique capabilities, Hammerking formed the Ultra4 Racing series. The series challenges drivers to compete in a wide variety of terrain from endurance desert racing to competition-style rock crawls to short course racing.