Alfred Berruyer and the tripod design on the left side of his bike.
However, about why the tripod design is on the left side, two explanations are given that are due to habits and techniques.
In terms of habits, most of us are right-handed, so when we stop the vehicle against the legs and get off the car, the right foot will be lifted up and rotated in a clockwise direction. When boarding the car, we put our right foot forward and rotate the person counterclockwise. If the anti-leg is attached to the right, we will have to do the opposite. This is very difficult to balance. Therefore, it is understandable to place the vehicle stand on the left.
Technically, because the gear lever is on the left and the foot brake is placed on the right side, the left foot attachment will help the foot brake and the foot rest independently.
In addition, the mounting of the left foot support also helps users to use it more conveniently, people will use the right foot as a pillar, the left foot kicks the kickstand and kicks the number. If placed on the right, the driver will have to perform many more operations, the right foot is pushed against the foot, then the right foot is anti-down as the base for the left foot to put the number.