Choosing the optimal bicycle frame size is a significant factor with respect to comfort and handling. Whether the frame is too large or too small, the riding comfort and the control of the bike will be suboptimal. Say, for example, smaller frame size may result in even better maneuverability and an even greater sense of the bike being ‘under’ the rider, however, a bigger frame size may seem somewhat difficult. The stack height, which usually varies the most with frame sizes, can tremendously affect how the bike looks and performs.