Watch this 2015 Supercross REWIND from Round 2 of the 450SX Main Event in Phoenix, AZ. Someone gets their first 450SX win here. Watch to find out who! #SupercrossLIVE #SXAtHome @Monster Energy #EliTomac Monster Energy® AMA Supercross, an FIM World Championship, is the most competitive and highest-profile off-road motorcycle racing championship on the planet. Over 17 weeks between January through May and a million-dollar All-Star Race, Supercross attracts some of the largest and most impressive crowds insi
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