It has a more central shifting system, and a sloping top tube.
The F-frame had no top tube and could therefore be easily mounted.
I pull it up onto the edge of the top tube and tie it in place.
The top tube gives only a few inches of freeboard.
The difference between a woman's bicycle and other bicycles is the location of the top tube.
This system is operated by a single quick release found along the top tube of the bike.
"There should be two to three inches between your crotch and the bike's top tube," he said.
The bike has no top tube, so that his knees did not hit the frame.
The bike is then folded in the middle of the top tube so that the two halves come together.
The top tube starts off hot, the bottom cold.