Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)

Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)

Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)

Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)

Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)

Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)

Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)

Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)

Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)

Cyclists participate in Bike the Drive on Lake Shore Drive in downtown Chicago, the United States, on May 26, 2019. Bike the Drive is a recreational, non-competitive bicycle ride held annually in Chicago. The Lake Shore Drive along Lake Michigan was closed half day on Sunday for the event with the participation of thousands of cyclists. (Xinhua/Wang Ping)