Fat Bike Tires Tyres Wheels - Accessories CHAOYANG Bike Chaoyang, part of the holding Hangzhou Zhongce Rubber Co., Ltd. (ZC-RUBBER), represents the NO. 1 Chinese tire manufacturer and one of the TOP 10 global tire manufacturers. The corporate philosophy is all about collaboration - with suppliers, with over 10,000 distributors selling products worldwide, and with millions of consumers who trust their tires every single day.