Make:

There is something in the air, and it's steam... A few Makers sent in some steam powered bicycles, here's a round up... know of others? Post in the comments.

The Roper Steam motorcycle "Bob Jorgensen of Memphis took "Motocycles 1899" and immediately fabricated the engine that Sylvester H Roper used on his steam motorcycle. The original boiler which Bob has yet to build provided 160 to 225 psi of steam. Roper died while racing his motorcycle at the age of 73!"- Link.

The Hudspith Steam Bicycle, by Geoff Hudspith The engine is a horizontai single-cylinder, double-acting one of my own design. The bore is 1 3/8" and the stroke is 1 1/4", giving about 1/4hp, depending on the pressure of the steam. I ran and exhibited the engine and boiler for several years as a stationary unit driving a 12V dynamo. During this period I made several improvements to the engine, eg: making a boiler feed pump driven by an eccentric on the crankshaft, and controlled by a by-pass valve to the right of the engine. - Link.

Michaux-Perreaux steam bicycle - This is normally considered to be the first motorcycle. Built in France, 1868-1869. The engine is mounted at 45 degrees on the main frame member; behind it is the boiler, with what appear to be fuel and water tanks. Note that this is a velocipede, not a Safety Bicycle, and the pedals are mounted directly on the front wheel. - Link.

1896 Geneva steam bicycle "This authentically restored bicycle, manufactured by the Geneva Bicycle and Steam Carriage Co. in Geneva Ohio, is fitted with a steam engine built on the design of Lucius Copeland, who built his first steam vehicle based on a Star high wheeled bicycle in 1886. It will travel at 12 miles per hour, although maintaining a head of steam at that speed is difficult." - Link.