The basic idea for the ROTOR System emerged at the School of Aeronautical Engineers of Madrid, where some students developed the initial prototype in 1995. After the school's Rector approved the project, the School's Manufacturing Laboratory helped them with the creation of the prototypes The designers decided to create a company to finish the product development and start a business venture. After the first bicycle with the ROTOR System was presented internationally, Dr. Conconi showed great interest in the idea and requested a bicycle to carry out a study on the performance of the system, concluding that the system provided advantages more than evident when compared to the traditional crank systems. Dr. Alfredo Córdova, from the University of Valladolid, also verified the evident biomechanical advantages in later versions of the ROTOR System. The first versions of the ROTOR System were available in 1998, being manufactured by EDR, a Spanish manufacturer of high-tech components. This first version needed a specific frame since it could not be installed in a conventional bottom bracket. This problem was solved with the appearance of the RCK in 2001 since all cyclists could take advantage of the biomechanical benefits that the ROTOR System offered, using a conventional bicycle frame. In 2005 the company took a giant leap and dared to go against the tide again: it launched its variable-development oval chainring Q-Rings to the world market. Throughout 2006 and 2007, the idea of expanding their technology began to be forged, and, in this way, a new era of exceptionally light and resistant components emerged, with the flagship S1 stem. They seek ultralightness, in balance with a rigidity that allows all types of users to use their range of products without weight limitations or restrictions due to competition.
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