Motorcycling pics with Canon 1DX anyone?

Hallo, I am new here (from Belgium), but already following DPreview for a long time. Since 2008 I am following the Superbike World Championship en Trial World Championship with my A900. Fine pics , but 2 big problems: low light and auto focus speed. I am thinking to make a switch to the Canon DX1. Has anyone outhere motorcycling pics taken with a 1DX? If possible I would prefer to see them in full version. Thanks very much in advance. All advice for a speedy DSLR are welcome.