Various kinds of electronic bicycles, the spare parts, professional cycling equipments and shared-bikes' manufacturing technology are on display at the 18th North China International Bicycle and E-Bike Exhibition, which is held from March 23 to 25 in Tianjin. [Photo/Xinhua]

Visitors view the electronic bicycles on display. [Photo/Xinhua]

A visitor has a close look at a sports bicycle at the exhibition. [Photo/Xinhua]