People visit the 12th China International Motorcycle Trade Exhibition in southwest China's Chongqing Municipality, Oct. 17, 2013. Over 400 motorcycle manufacturers from some 10 countries and regions attended the expo, which kicked off on Thursday. (Xinhua/Liu Chan)

People visit the 12th China International Motorcycle Trade Exhibition in southwest China's Chongqing Municipality, Oct. 17, 2013. Over 400 motorcycle manufacturers from some 10 countries and regions attended the expo, which kicked off on Thursday. (Xinhua/Liu Chan)

People visit the 12th China International Motorcycle Trade Exhibition in southwest China's Chongqing Municipality, Oct. 17, 2013. Over 400 motorcycle manufacturers from some 10 countries and regions attended the expo, which kicked off on Thursday. (Xinhua/Liu Chan)

People visit the 12th China International Motorcycle Trade Exhibition in southwest China's Chongqing Municipality, Oct. 17, 2013. Over 400 motorcycle manufacturers from some 10 countries and regions attended the expo, which kicked off on Thursday. (Xinhua/Liu Chan)

Photo taken on Oct. 17, 2013 shows a concept amphibious motocycle exhibited at the 12th China International Motorcycle Trade Exhibition in southwest China's Chongqing Municipality. Over 400 motorcycle manufacturers from some 10 countries and regions attended the expo, which kicked off on Thursday. (Xinhua/Liu Chan)

People visit the 12th China International Motorcycle Trade Exhibition in southwest China's Chongqing Municipality, Oct. 17, 2013. Over 400 motorcycle manufacturers from some 10 countries and regions attended the expo, which kicked off on Thursday. (Xinhua/Liu Chan)