The Chinese motorcycle brand ZXMOTO and its founder Zhang Xue have become one of the most-mentioned topics online in April following their unprecedented victory in a world-class race. Zhang’s wife, who has been with him since she was a teenager, has also become famous. Chen Xingyi, 38, was Zhang’s junior secondary school classmate. She began dating him when they were both poor youngsters and was by his side when he quit school, became a motorcycle repair shop apprentice, and a mechanic at a...