For almost 100 years the THUN group has been producing and distributing components and parts for bicycles; particularly bicycle transmission parts such as bb-sets (also called bb-cartridges) and sensor technology for pedelecs, e-bikes and e-mountain bikes (bb-sensors). The company’s head quarters and main production facility are located in North Rhine-Westphalia in Germany which makes THUN the last real European manufacturer of bb-sets. Almost 50 employees produce more than 50.000 bb-sets daily. Due to a global distribution of THUN products the Alfred Thun GmbH & Co. KG Company has become the market leader in Europe. Moreover, currently underway is the registration of a subsidiary THUN (Tianjin) Bicycle Components Co., Ltd.