US Patent 6976693 Training wheels

A training wheel frame is disclosed comprising a stem, where the stem has an upper and lower end. The upper end is capable of being connected to a bicycle frame. The frame has left and right side tubes, where each of the side tubes has a front end. The front end of each side tube is connected to the lower end of the stem. The left and right side tubes are of the frame are incapable of separately rotating about the lower end of the stem, and the left and right tubes being capable of pivoting about the front end of the tubes to place training wheels between the ground and the chain stay tubes of the bicycle frame.