AMA National Motocross Series, Round 5 at Thunder Valley MX in Lakewood, Colorado. In the premier Motocross class defending Motocross Champion Ryan Dungey was the overall winner, while Chad Reed‘s third place retained his series points lead. In the 250 MX Lites class, Blake Baggett was the overall winner, while teammate Dean Wilson takes over the series points lead. The series heads to RedBud this weekend for Round 6.

Video courtesy of MXSports

There are two classes in AMA professional motocross: the 250cc Lites class, and the “Motocross” class, which can run engine sizes from 251cc to 500cc. Most riders race 450cc machines in Motocross, with KTM also having a 350cc machine.

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