An Electric Boost for Bicyclists (photos)

By J. DAVID GOODMAN

Published: January 31, 2010

SHANGHAI — Jiang Ruming, a marketing manager, owns a van, but for many errands, he hops on a futuristic-looking contraption that lets him weave rapidly through Shanghai’s messy traffic. He rides an electric bicycle.

Nicole Bengiveno/The New York Times

Roger Phillips, 78, uses an electric bicycle in Manhattan, although they are not officially permitted on New York streets.

J. David Goodman for The New York Times

Electric bicycle riders in China, where about 120 million such bikes are used, with some going up to 30 miles an hour.

Half a world away, in San Francisco, the president of that city’s board of supervisors, David Chiu, uses an electric bike to get to meetings without sweating through his suit.

And in the Netherlands, Jessy Wijzenbeek-Voet recently rode an electric bicycle on a long trip that, at 71, she would not have been able to make on a standard bike.

Detroit may be introducing electric car designs and China may be pushing forward with a big expansion of its highways and trains. But people like Mr. Jiang, Ms. Wijzenbeek-Voet and Mr. Chiu — as well as delivery workers in New York, postal employees in Germany and commuters from Canada to Japan — are among the millions taking part in a more accidental transportation upheaval.

It began in China, where an estimated 120 million electric bicycles now hum along the roads, up from a few thousand in the 1990s. They are replacing traditional bikes and motorcycles at a rapid clip and, in many cases, allowing people to put off the switch to cars.