A prone bicycle is a bicycle

Bicycle

A bicycle, also known as a bike, pushbike or cycle, is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A person who rides a bicycle is called a cyclist, or bicyclist....

 which places the rider in a prone position

Prone position

The term means to lie on bed or ground in a position with chest downwards and back upwards.-Etymology :The word "prone," meaning "naturally inclined to something, apt, liable," has been recorded in English since 1382; the meaning "lying face-down" was first recorded in 1578, but is also referred to...

. The bottom bracket

Bottom bracket

The bottom bracket on a bicycle connects the crankset to the bicycle and allows the crankset to rotate freely. It contains a spindle that the crankset attaches to, and the bearings that allow the spindle and cranks to rotate. The chainrings and pedals attach to the cranks...

 is located at the bicycle's rear, the rider lies either on a pad or in a hard-shell seat. The prone position of the rider's body can reduce aerodynamic drag

Drag (physics)

In fluid dynamics, drag refers to forces which act on a solid object in the direction of the relative fluid flow velocity...

 and therefore increase the efficiency of the vehicle. It could also be more comfortable or ergonomic than other bicycles.

The first prone bicycle was developed and marketed by the American company Darling

Darling

Darling is a term of endearment of Anglo-Saxon origin.It may also refer to:-Places:In Australia:*Darling Downs, a region in Queensland, Australia*Darling Harbour, New South Wales in Sydney, Australia*Darling Heights, Queensland...

in 1897.

Most prone bicycles are do-it-yourself constructions. There are few series-production models.

External links

• Prone bike Prone Low-Profile