Rotor
ROTOR Bike Components is a Spanish manufacturer based in Madrid, founded in 1994 by cycling enthusiasts who set out to eliminate the dead spot in the pedal stroke. That quest gave birth to the Q-Rings oval chainrings, which became the brand's signature and are ridden by professionals worldwide. ROTOR designs, machines and hand-assembles its cranksets, power meters and drivetrains at its facility near Madrid. In 2018-2019 it made history by launching the 1x13, the world's first hydraulically actuated 13-speed drivetrain - a fully mechanical, fluid-driven 1x groupset for road, gravel and MTB.