AMA Arenacross Series have a Starscore of 151,526 and are No.47361 today on the Global social media chart
With a total of 7,826 Twitter followers and 69,319 Facebook fans. Today AMA Arenacross Series gained 2 Twitter followers and gained 74 Facebook fans.
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The AMA Motocross Championship is the major motocross series of the United States, held since 1972. It is sanctioned by the American Motorcyclist Association and managed by MX Sports Pro Racing. The series began in 1972 with the introduction of two classes based on 500 cc and 250 cc engine formulas. A 125 cc class was added in 1974. As motocross technology developed, 500 cc two-stroke motocross bikes became too powerful for the average rider and, faced with diminishing numbers of competitors, the A.M.A. discontinued the 500 cc class after the 1993 season. A women's national championship series was introduced in 1996. Facing tightening emissions regulations, in 1997, the A.M.A. increased the allowable displacement capacity for four-stroke engines, in an effort to encourage manufacturers to develop environmentally friendlier four-stroke machines. In 2006, the 250 cc division was renamed the MX Class, with an engine formula allowing for 150–250 cc two-stroke or 251–450 cc four-stroke machines. The 125 cc class was renamed the MX Lites Class, allowing 0–125 cc two-stroke or 150–250 cc four-stroke engines. In 2009, the MX class was renamed the 450 Class and the MX Lites class was renamed the 250 Class, to reflect the fact that all the competing manufacturers had adopted four-stroke machinery.