I find that my knees are coming ahead of the pedals while I am on the aero bars. I am not sure whether this is right or wrong.
In the below image, I don't feel pain on my lower back for a long duration but I am seated on the edge of the saddle. This results in a painful pelvic girdle. But I am worried that my knee is too far ahead of the pedal on the horizontal crank arm position.
In the below image, I am seated on the middle of the saddle which brings my knee a little closer to the pedal. But I experience lower back pain after a very short time.
I am afraid, both the positions are wrong because both the positions bring my knee in front of the pedal.
Now my question is, where should my knee be with respect to the pedal or toes?
Also how to correct it (if wrong), should I reduce the stem length or bring my saddle forward? Invite other suggestions as well!
Currently the stem length is 100 mm.