Freestyle Motocross (FMX) is acrobatics meets NASCAR as riders fly 50 feet in the air on 250 pound motorcycles while performing gravity slashing tricks such as backflips and Hart Attacks!!  Gravity Slashers hit ARCO Arena. Sacramento California February 16, 2010 Thrills and chills is an understatement when you are referring to the event taking place at ARCO Arena this Friday and Saturday night. The Freestyle Supercross Motorcycle event comes to the arena with some of the hottest superstars in the industry. Per event promoters, the riders will converge at ARCO Arena to battle head-to-head for the top spot on the podium. The regular home of the NBA’s Sacramento Kings will be transformed int