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Rotor Qrings Shimano 12-speed road bike inner chainring
(2 reviews)
Tooth counts: 34 / 36 / 39 - compatible with Shimano 11-speed
Our opinion
The Rotor Qrings Shimano 12v internal chainring will optimise your pedalling performance by making it easier to shift gears.
Nicolas D.
Technical expert
If your bike is fitted with a Shimano 12-speed groupset, such as Ultegra or Dura-Ace, and you’re looking to fit oval chainrings, these Rotor Qrings are the best solution. Available with 34, 36 or 39T teeth, this inner chainring reduces the amount of muscle power required during the dead centre of the pedal stroke. With its oval shape, this chainring offers greater power potential in the power zone. Suffice to say that with it, you’ll clearly take your road cycling to the next level.
Rotor’s recommendations for optimised performance: 50-34 / 52-36 / 53-39
Technical specifications:
- Position: Internal
- Teeth: 34 / 36 / 39
- Compatible only with Shimano 12- and 11-speed cranksets
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Votre avis compte pour nous
Nos clients les meilleurs ambassadeurs
-
Emmanuel w. 
Published May 16, 2026 at 05:54 pm (Order date: May 02, 2026)matches what I wanted on an Ultegra FC 8000 (Translated review)
- Alexandre L.
Published Jul 04, 2025 at 09:02 pmI took these chainrings in 50-34 to replace old models in 53-38 on a Shimano 10-speed group, no issues to report on the first rides. And as expected, perfectly compatible with Ultegra 8100 crankarms in 165cm that I took instead of my Dura-Ace 9000 172.5cm. (Translated review)
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