ROTOR Bike Components - If you have Shimano® Dura-Ace R9100 or Shimano® Ultegra R8000 cranks, you can now assemble them with the new ROTOR Q RINGS BCD110x4 oval chainrings. They are 100%
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Amazon.com: Rotor - Q 36t-bcd110x5 - Bandeja unisex para bicicleta, color negro : Deportes y Actividades al Aire Libre
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