Cheng Shin CST C1820 tire Size 27.5 * 2.1 Material rubber Weight 753g Bear tire pressure 40~65 PSI T80 21

X-FREE Corporation was mainly engaged in the research and development of production tools, line pipe parts, guard plates, and height increasers in the early days of its establishment.In response to changes in the bicycle market in Taiwan, X-FREE was established in 2008,And established the company's exclusive brand X-FREE,The main product categories include: bicycles, inner and outer tires, line pipe systems, brake systems,Transmission system, transmission system, professional machine tools, racks, parking racks, various car packages,Thousands of products such as car clothes, socks, helmets, lighting warning lights, titanium alloy products...