Didn't read all the responses... here's my input:
What's wrong with a lady who takes care of her body showing it off in some hot photos?
Too many people think "woman athlete = butch". And let's face it, a lot of professional athletes can be a bit manly looking.
She is showing that just because you ride a bike, run, are a professional athlete... that doesn't mean that you can't be feminim and sexy.
Healthy, fit and in shape = sexy. Being a professional athlete with muscles = sexy. What a positive body image to spread around.
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"