CHANTABURI, THAILAND - NOV 20: An unidentified rider participates in the final round of the 2011 Thailand motocross championship on November 20, 2011 in Chantaburi, Thailand.

CHANTABURI, THAILAND - NOV 20: An unidentified rider participates in the final round of the 2011 Thailand motocross championship on November 20, 2011 in Chantaburi, Thailand.

CHANTABURI, THAILAND - NOV 20: An unidentified rider participates in the final round of the 2011 Thailand motocross championship on November 20, 2011 in Chantaburi, Thailand.