Racer X Tested: 2013 450 Shootout, Chris Blose October 18, 2012, 5:20pm Matt Francis Home Supercross Motocross Multimedia Video Racer X Films Racer X Tested Racer X Tested: 2013 450 Shootout, Chris Blose Share Facebook Twitter Chris Blose gives his feedback on all the new 2013 big bores.