Thanks for your comments guys, the suggested crop does work, actually it's how I'd normally crop such an image, was just trying to
be different for a change.
Randy,
Thanks for your comment.
The class was 700cc & 1300cc streetstocks, essentially Honda cbr600's,Kawasaki zx6r's, Kawasaki zx10's, Yamaha R1's etc,etc.
The shadow line was caused by the drying track, there had been some rain though the dry line is clearly evident.
Have included an example of how I'd normally crop such an image, admittedly I wouldn't normally put the bike horizontally in the centre of the frame either.