![Video Video: Ken Roczen Wins the 2016 AMA 450 Pro Motocross Championship](https://www.dirtaction.com.au/wp-content/uploads/2016/08/Video-1.jpg)
Take a look back on the years of success Ken Roczen has had during his time in America, all leading up to his latest title as the 2016 AMA 450 Pro Motocross Champion.
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