While the top local and international extreme athletes are gearing up for the Ultimate X 2016 action sports festival in the GrandWest arena on Saturday 27 February, South Africa's Harley-Davidson dealers are gearing up in quite a different way. Because this year the Ultimate X festival, sponsored for the first time by Harley-Davidson's Dark Custom division, has issued a challenge to Harley dealerships countrywide to compete for the title of the nation's top custom bike builder in the 'Battle of the Kings'.