Is it legit? I don't know, could be. Its too hard to tell on this low res image. Here is what I do see:
Lots of retouching evidence around the body. Left, outside forearm. Right side shirt where it meets the pants. The rim light coming from the backlit sun is too strong on the butt, leg areas, looks like clipping evidence. Reflection on the underside of the back of the seat is too strong. Bottom of the back wheel is perfectly separated from the background.
In any case, fake or not, It is done by a professional photographer and professionally retouched. It could be real and just overworked by the retoucher. Sometimes they don't know when to say when!
But,every time I look at it, I see a bike laying on its side and a rider laying on his back with his feet up in the air.