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Rotor

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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.

Opinions featured in Rotor

Rotor QRings AXS 35D BCD 107x4 Inner Chainring Black
Rotor, of course.
As always rotor does not disappoint, you always have to bet on national brands
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Rotor QRings AXS 48D BCD 107x4 Outer Chainring Black
Rotor, of course.
Excellent plates, one of the 4 supports did not fit well, but with a bit of filing, the problem was solved
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External plate Rotor Aero BCD 110x5 aero black
Good quality
Great Spanish product
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Rotor MTB QX1 QRings Direct Mount Chainring for Shimano XT 12V Black
Everything is perfect
Good quality and perfect product
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Plate of MTB Rotor Hawk and Raptor noQ round black
very good quality
recommended
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Rotor QRings QX1 BCD76 4-Arm MTB Chainring Black
It was just what I needed and arrived in perfect condition.
A product that met my needs.
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External plate Rotor Aero QRings BCD 110x4 Spider Mount black
Excellent quality
I have been a user of Rotor Qrings for years and I'm delighted with them. They're perfect for me,,
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Plate of MTB Rotor Hawk and Raptor QRings black
Perfect!
Great quality
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Rotor screws for road plates black
Everything is perfect
That's what I was looking for.
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Rotor QRings QX1 BCD96 XT MTB Chainring Black
Highly recommended
I hadn't tried Rotor before and it doesn't disappoint
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Rotor Press Fit 4130 Bottom Bracket Bearings Steel Black
They do what they're supposed to
Good product, they are a bit hard but very good value for money.
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Rotor QRings QX1 BCD76 4-Arm MTB Chainring Black
Impressive
Rotor chainrings are very good
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Rotor QRings QX1 BCD96 XT MTB Chainring Black
Great chainring
Very good feel both in climb and riding fast, the feel of the oval chainring is noticeable from the get-go, highly recommended
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Rotor BB30 Bearing Kit Steel
Rotor guarantee
Rotor's cheap ones that do the job perfectly. They are good, without doubt.
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Rotor QRings BCD 110x5 Aero Road Outer Chainring Black
Feels good
I hope to get the best out of them as I ride. First impressions are very good.
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