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Product Images

Rotor Direct Mount 2x Chainring Set Round
Rotor Direct Mount 2x Chainring Set Oval
Rotor Direct Mount 2x Chainring Set
Rotor Direct Mount 2x Chainring Set
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Rotor Direct Mount 2x Chainring Set 4
Rotor Direct Mount 2x Chainring Set 1
Rotor Direct Mount 2x Chainring Set 2
Rotor Direct Mount 2x Chainring Set 3

Rotor Direct Mount 2x Chainring Set


Pricing and Order Section

Mfg PartNum: C01-039-08010-0
MSRP: $280.00
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Optimum Chainring Position Tech With 12.5% Ovality

Rotor's Aldhu Q Spidering Oval Direct Mount Chainring Set features patent-pending, proprietary technology that allows the oval Direct Mount to be adjusted in 1-degree increments for optimized pedaling biomechanics. 12.5% ovality heightens the performance advantages of oval chainrings. Rotor claims that no other oval chainring on the market offers the adjustment options plus unique ovality.

Crankarm Compatibility:

  • Rotor Aldhu
  • Rotor Aldhu24
  • Rotor Vegast
  • Rotor INpower DM
  • Rotor 2INpower DM
  • A Fully Customizable Crankset Approach

    Here's how Rotor's new cranksets work — everything is modular. You choose the arms, the spindle, and the chainring. And whether you want a power meter-equipped spider, spindle, crankarm, or none of that. You can even choose between round and oval chainrings. Then piece it all together to create the exact system that suits your specific needs.


  • CNC-machined 7075 aluminum
  • Direct mount 2x set features the most biomechanical adjustability on the market
  • Compatible with 11 and 12-speed drivetrains
  • Available in round and oval ring options
  • Available in 50/34t, 52/36t, 53/39t
  • Weight: 168g

  • B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.


    52/36 Tooth (Oval)

    Mfg PartNum: C01-039-09010-0 


    Ordered by Most Relevant First
    5 stars
    4 stars
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    1 stars
    Reviewed 10/8/2019
    by Matt
    Overall Rating
    Better than old design

    Ive used previous version of Rotor Q Rings with a separate spider. I recently upgraded to Rotor 2in Power meter. I had no choice and had to buy the new Q Rings with direct mount. This is much simpler design and attaches to crankset much easier, as compared to the old spider version. I also like the bigger oval (12.5%).

    The new setup looks and works great.

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    Mechanic's Corner

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