On a motorcycle whose riding position permits a more tucked posture, what effect can that posture have at the same speed and otherwise unchanged conditions?

Correct answer

It can reduce aerodynamic drag.

It can reduce aerodynamic drag by changing the area and shape exposed to airflow. Short, low handlebars alone do not guarantee this on every model, and not all handlebars are adjustable. Do not modify them outside the manufacturer’s specifications; maintain control, visibility and safe mirror use. A tucked posture does not by itself require larger blind spots or a considerable increase in fuel consumption.