Rans is also known as a manufacturer of upright and recumbent bicycles. They are still used on some BMX and recumbent bicycles. The center of gravity is quite high compared to recumbent trikes. A variant with three wheels is a recumbent tricycle. All bicycles are allowed, even a recumbent or a tandem. The retronym "upright bicycle" is used to distinguish the style from recumbent bicycles. These are also used on recumbent bicycles for under-seat steering. Less commonly, the term is applied to fully faired recumbent bicycles. Tandems come with both upright and recumbent seating. His staff requested recumbent stationary bikes for his hotel rooms. Manufacturers of recumbent trikes include Greenspeed, WhizWheelz and Inspired Cycle Engineering (ICE). Examples have included upright, recumbent, delta, and tadpole configurations. She poses either on the floor or in bed, usually recumbent and often supine. Conversely, the rider enjoys better visibility than on a recumbent because their head is higher. Her tomb has a recumbent marble effigy of herself on top.