Can saddle setback confirm if a frame is too small or large?
I've ignored the "KOPS" method and instead focused on the center of gravity, so I assume you want your center of gravity where it's right between the two wheels.
So I've attained this but I've had to slide my saddle all the way backwards until it's at the max limit on the rail, setback must be about 7cm from BB now.
This is a 52cm frame, I assume if I was on a 54cm frame, my center of gravity would be about 2cm further forward, so saddle 2cm closer to BB as the back wheel would essentially be 2cm further back?
So essentially a too small frame can mean that you might have to be setback too far so your knee is actually not in a good place in relation to the pedal thus frame size is incorrect?
It would be excellent (literally) if this is the case because I'd have to sell my Trek and get a different bike.