Faster and Harder?

Click image to enlarge.

I am curious. In which photograph do you think the riders are working harder to go faster? Please post your answer (top or bottom) here so that all can see. Not everyone is on twitter and facebook.

You will see why I ask this question in my next post. If you do know why, please don't spoil the fun (and learning) for others :-)

Thank you for joining the fun.

Explore the light,