BMX originated from motocross racing. It first became popular in California in the late 1960s and made its Olympic debut in 2008 at the Beijing Games. Riders race from a start gate, over a purpose-built dirt course made up of jumps and bends (berms) to a finish line. The race is commonly one lap of a 400-metre course. Jumps in the line up include rollers, and step-up doubles. Latvia's Maris Strombergs won gold at the men's competition during the London 2012 Olympics with Colombian Mariana Pajon taking the women's title. BMX racing bikes are longer and lighter than ordinary BMX bikes, with only one brake at the rear..