CST stands for Cheng Shin Tyre & are made by Cheng Shin Rubber Ind. Co. Ltd. Employing more than 20, 000 people, Cheng Shin Tyre is the largest manufacturer of bicycle tyres in the world Distributed in more than 150 countries, the CST brand covers a wide range of market segments. CST specialise in cycle tyres & bike inner tubes with factories in Xiamen & China. CST’s operations boast world-class manufacturing equipment, innovative technology & a strong emphasis on quality & customer satisfaction. CST adheres to the most stringent international standards. The company has attained certificates & awards including DOT (US Department of Transportation) certification, ISO9002, E-Mark, & TS 16949.