In the a certain bike companys' catalog there is a article about bike fit. It says for long femur than knee behind pedal axle. If femur same length as fibia(Lower leg) than knee in center and if you have short femurs than knee in front of pedal axle. But some depends on size of feet. Size of feet can change height by 1/2 inch.

1. How determine relationship of feet to leg length?

2. Does this apply with road bike as well?(as far as, knee relation to axle)

One other thing--it says ears should be right above elbow's--how many people do you see on to big of a big now?!!!