Everybody says when going around a corner on a motorcycle and leaning, you feel the g forces vertically (like pushing down on your spine) as opposed to horizontally when cornering in a car. I can't understand how that can be the case, if the rider corners at 45 degrees, the gravitational force will perpendicular to the ground, and the centrifugal force will always be parallel to the ground, no matter the amount. So how can the rider feel it pushing him down to the seat? As for the amount of force that is felt: If the rider is cornering at 0.5g, does he only feel 0.5g on his body? The total force he feels is less than 1g which is what he feels when standing on still on the ground?