Cixi GreatWall Flywheel Co., Ltd. Specializes in producing bicycle fittings. The company covers an area of 25, 000 square meters and boasts modern factory premises, a recent technology production process and up to date punching machines: It has become the production base of the one of the biggest freewheel manufacturers. The product shares the high quality of its manufacturing process, The specification is all and beautiful appearance. The products meet the required quality standard after testing by the National bicycle inspection center. At present, Full product specification, low price in excellent quality. We have early passed ISO9001 standardize the quality system.