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%
Rotor Q RINGS 52T oval chainrings compatible with Shimano BCD 110x4 (Dura Ace, Ultegra), Sports Equipment, Bicycles & Parts, Bicycles on Carousell
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