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Rotor Inner Q-Ring


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  • Black, 110x4 BCD, 39t
  • Black, 110x4 BCD, 36t

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Train smarter.

The path you've taken towards progress has been one of challenges, triumphs and gains, but you've probably had a few moments here and there where you've wondered if you could be doing it better. Rotor created Q-rings for these moments — to not just show you that you can train smarter, but that you can utilize your strengths to push through your weaknesses and propel you forward at greater speed than before, and the Inner Q-Ring is no different. This small and handy CNC-machined chainring brings you total control over your power, with ovality to challenge all of your muscles to work together, reducing strain on your knees through the weakest points, and pushing you to ride harder, faster, and longer. This Inner Q-ring brings the same benefits that you've grown familiar with from Q rings to a two-by setup. When paired with Aldhu, you can adjust the Optimum Chainring Positioning, or OHP, one degree at a time to dial in the best pedal stroke possible. The chainring can also pair with Shimano cranksets, though it loses its infinite adjustability in this configuration, as it skips the direct-mount adjustable spindle modularity.

  • A modular chainring for boosting your training
  • Oval shape elevates performance and alleviates strain
  • 110BCD pairs with Shimano or Rotor Aldhu cranks
  • Infinite adjustability when paired with Aldhu
  • Stiff and reliable performance thanks to CNC machined 7075 alloy
  • Item #RTR003A

7075 aluminum, CNC machined
34t, 36t, 39t
Bolt Circle Diameter
4 bolts
Compatible Components
Rotor Aldhu 3D, Shimano cranks
Recommended Use
Manufacturer Warranty
limited lifetime

Tech Specs

What do you think about this product?


>Rating: 5


I've put it through the wringer


>Rating: 4

Need the Correct Cranks

I returned this product before using it

I ended up returning this as although I have a 110BCD crank, it's a Truvativ, and I guess you need their proprietary crank (or maybe a Shimano?). I should have checked that before, but it was a question I didn't know to ask. The chainring looks really well-constructed and I'd like to find a way to try them out on my road bike! I'm hoping it'll help with my poor pedaling form and/or patellar tendinitis. I have heard that it doesn't make a DRASTIC difference, but it does make a difference, and considering the cost of medical expenses, this could be a cheaper way to keep my knees happy!