Improvements to the design began to be seen, many with the small wheel in the front to eliminate the tipping-forward problem. They made the wheels even.
The pnuematic tire was first applied to the bicycle by an Irish veterinarian who was trying to give his young son a more comfortable ride on his tricycle. This inventive young doctor's name was Dunlop.
Because the rider sat so high above the center of gravity, if the front wheel was stopped by a stone or rut in the road, the entire apparatus rotated forward on its front axle so they fell.