Under Joy Industrial Co., Ltd.; Dienatronic is a division, a brand represents a new era in power assisted cycles and e-cycle related products. With endorsement from representative, subsidiary companies around US, and Europe, recognition of Dienatronic gradually take place around the world.Dienatronic extensive product line features in electric conversion kits for bicycles, e-bikes and e-3cycles as well as fully integrated e-cycle systems. We constantly are processing innovative ways to stay ahead of the high demands of our customers.Dienatronic is here to satisfy needs and demands for the e-bike industry and beyond. Given our customers: high-quality, reliable and safe products; products can bring joy enrich life and environment. Product Line:e-Cycles System: Consists 6 components ? Electric Hub Motor (Disc type, 250W, 500W), Controller, Sensor (B.B. Speed Sensor, Torque Sensor), LCD Display, Brake Lever, and Battery (optional). Motor, Controller are designed and made in our factory, all are ensure by CE, with EN certification. Suitable to turn all bike in e-Bike.e-Bike: Through research, engineering, testing, and development, we had comprehended and accomplish producing high quality, functionality, safeness e-bike with 100% QC.e-3C: Equipping 7 speeds, 5 stage power paddling assist by 250W electric hub motor. It is suitable for mid/elder person with mild to moderate extremity physical disabilities. It is fashion, and modernize.To provide better service, we have set up warehouse located in Europe and in US.