KOH-Fox-Spec-Class-1-23-14
El Cajon, Calif.
– Ultra4 racing has grown exponentially since King of the Hammers (KOH) started as a small gathering of friends back in 2007.  The latest addition to this hybrid event that combines desert racing and rock crawling is the Ultra4 4700 Spec Class, which allows race enthusiasts to enjoy an arrive-and-race experience at King of the Hammers and other Ultra4 races throughout the year.