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Old 03-02-2011, 09:45 PM
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Dave31 Dave31 is offline
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Default First motorized bicycle to cross U.S.

George Adams Wyman was the first person to across the United States on a Motorized Bicycle.

In 1903, Wyman rode his 1902 California motor bicycle from San Francisco to New York City in fifty-one days, finishing twenty days before Dr. Horatio Nelson Jackson, the first person to cross the continent by automobile.

The California had a 200cc, 1.5-hp four-stroke engine attached to an ordinary diamond-frame bicycle. The cycle was equipped with 28 x 1.5 in. tires, wooden rims, a leading-link front suspension fork, a Garford spring saddle, a Duck Brake Company front roller brake, and a 1902-patent Atherton rear coaster brake.

A leathern belt-drive with a spring-loaded idler pulley directly connected the engine output shaft to the rear wheel. Using a standard steel bicycle frame, the California weighed approximately 70-80 pounds without rider, and was capable of approximately 25mph using the 30-octane gasoline of the day, with a range of 75-100 miles.
Attached Images
File Type: jpg 166_Wyman_Picture_with_California_1.jpg (95.9 KB, 259 views)
File Type: jpg 166_Wyman_Bio_pic_1.jpg (54.7 KB, 228 views)

Last edited by Dave31; 03-02-2011 at 09:52 PM.
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