E-bike Drivetrain Brose, E-Bike - Parts Bike. Brose is one of the leading brands in the production of electric motors for bicycles. Many years of experience as a specialist in mechanical and electrical systems in the automotive sector have created the optimal conditions for the development of an innovative motor concept for high quality electric bicycles. Since 2014, the continuous evolution has made it possible to create lightweight, compact and efficient engines. Brand completely German (production and study), the Brose team is constantly looking for innovative solutions for the environment.