Originally Posted by
Classtime
“It’s complicated.”
You can get the saddle, pedals, and bars in the right places on a variety of frame sizes. But, what does that arrangement on the frame do to your center of gravity/weight distribution front to back? AND, above all—Will it look proper?
As frames get larger, the only thing that really happens with weight distribution is that the front wheel gets slightly further away. The rear wheel usually stays right where it would be on the smaller size, and the distance to the front wheel from the BB (front center) usually grows between .5 to 1cm per frame size. It is not a huge change as a 50cm frame will be around 97cm wheelbase and a 61 at 100cm.
You would have to be riding two bikes of radically different frame sizes to notice or see a difference in weight distribution.