Bicycles are shown during an exhibition in Hangzhou, capital of east China's Zhejiang Province, Oct. 9, 2009. The 2009 China Zhejiang International Bicycle Electric-cycle Exhibition was opened at the Peace International Convention and Exhibition Center in Hangzhou on Friday.(Xinhua/Zhu Yinwei)

A child visits a bicyle and electric-cycle exhibition in Hangzhou, capital of east China's Zhejiang Province, Oct. 9, 2009.(Xinhua/Zhu Yinwei)

Bicycles are shown during an exhibition in Hangzhou, capital of east China's Zhejiang Province, Oct. 9, 2009. (Xinhua/Zhu Yinwei)

People visit a bicyle and electric-cycle exhibition in Hangzhou, capital of east China's Zhejiang Province, Oct. 9, 2009.(Xinhua/Zhu Yinwei)

Electric-cycles are shown during an exhibition in Hangzhou, capital of east China's Zhejiang Province, Oct. 9, 2009. (Xinhua/Zhu Yinwei)

A foreign businessman experiences an electric-cycle during an exhibition in Hangzhou, capital of east China's Zhejiang Province, Oct. 9, 2009.  (Xinhua/Shi Jianxue)