Racer X Tested: 2013 450 Shootout, Chris Blose October 18, 2012 1:20pm | by: Matt Francis Home Supercross Motocross Multimedia Video Racer X Films Racer X Tested Racer X Tested: 2013 450 Shootout, Chris Blose Chris Blose gives his feedback on all the new 2013 big bores.