Cyclists wait to start the sixth stage of the Tour of Qinghai Lake in northwest China's Qinghai Province, on July 27, 2018. (Xinhuanet Photo by Jia Haiyuan)

Cyclists compete in the sixth stage of the Tour of Qinghai Lake in northwest China's Qinghai Province, on July 27, 2018. (Xinhuanet Photo by Jia Haiyuan)

Cyclists compete in the sixth stage of the Tour of Qinghai Lake in northwest China's Qinghai Province, on July 27, 2018. (Xinhuanet Photo by Yang Shoude)

Cyclists compete in the sixth stage of the Tour of Qinghai Lake in northwest China's Qinghai Province, on July 27, 2018. (Xinhuanet Photo by Jia Haiyuan)

Cyclists compete in the sixth stage of the Tour of Qinghai Lake in northwest China's Qinghai Province, on July 27, 2018. (Xinhuanet Photo by Jia Haiyuan)

Cyclists compete in the sixth stage of the Tour of Qinghai Lake in northwest China's Qinghai Province, on July 27, 2018. (Xinhuanet Photo by Yang Shoude)

A cyclist competes in the sixth stage of the Tour of Qinghai Lake in northwest China's Qinghai Province, on July 27, 2018. (Xinhuanet Photo by Yang Shoude)

Cyclists compete in the sixth stage of the Tour of Qinghai Lake in northwest China's Qinghai Province, on July 27, 2018. (Xinhuanet Photo by Yang Shoude)

Cyclists compete in the sixth stage of the Tour of Qinghai Lake in northwest China's Qinghai Province, on July 27, 2018. (Xinhuanet Photo by Yang Shoude)