Source: http://www.mxtrainingblog.com/riding-techniques/mastering-whoops/
Source: http://www.superfreestylemotocross.com/blog/chad-reed-chases-3-from-3-in-2011-ama-motocross/
Source: http://www.superfreestylemotocross.com/blog/travis-pastrani-engaged/
Source: http://www.superfreestylemotocross.com/blog/jay-marmont-wins-manjimup/