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Rotor Aldhu Q-ring R8000 / R9100 Chainring

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Number of teeth
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From 45.69 5.13 discount
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  • Trustpilot review 9.4 out of 50.264 reviews

30 Day Satisfaction Guarantee

For this product we offer our exclusive 30 day money-back guarantee. This means that you can try out the product for 30 days. Not satisfied? Then you can return the product and get a refund, even if you have used and tested the product. You have to pay for the costs for returning the product though.


Brand Rotor
Fits cranksShimano / Rotor Aldhu 3D+
Number of gears 11 speed
Number of bolts4
BCD 110 mm
Shimano CranksetDura Ace R9100 / Ultegra R8000


The Rotor Aldhu Q-ring R8000 / R9100 front blade is suitable for Shimano Dura Ace R9100, the Ultegra R8000 and Rotor ALDHU 3D+ crank sets. These chainrings are CNC milled so you get a very nice and lightweight chainring. In combination with the Rotor Aldhu 3D + Spider you can adjust the blades in any angle, so that it is adapted to your needs. The Rotor NewQ 110*4 chainrings take the dead center out of your torque, so you'll experience more efficiency with every pedaling movement.

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Fits cranks Shimano / Rotor Aldhu 3D+ Shimano Shimano / Sram / FSA Shimano / Sram / FSA
Number of gears 11 speed 11 speed 9 speed / 10 speed / 11 speed
Number of bolts 4 4 5 5
BCD 110 mm 110 mm 130 mm / 110 mm 110 mm
Chainring Type Outer Ring / Inner Ring Outer Ring / Inner Ring Outer Ring / Inner Ring Outer Ring / Inner Ring
Number of teeth 34 / 36 / 39 / 50 / 52 / 53 34 / 36 / 38 / 50 / 52 34 / 36 / 39 / 46 / 50 / 52 / 53 / 55 34 / 36 / 39 / 50 / 52 / 53
From 45.69 From 54.84 From 54.88 From 41.16
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9 / 10

ALESSANDRO, 6 February 2019

Ottima qualità costruttiva

Ottimo prodotto, facilità di montaggio, estetica ok.


  • Quality
  • Estetica
  • Facilità montaggio


  • Nessuno

9 / 10

ALESSANDRO, 24 August 2018

ottimo prodotto

migliora il rendimento della pedalata


  • estetica
  • peso


  • costo

All specifications

Detailed product description

The thoughts behind the Rotor Q-Ring chainring are clear: each pedal movement has a 'dead center'. This is the moment when your cranks sit vertically. At this point there is no possibility to keep pressure on your crank/pedals which makes you want to get beyond this point as fast as possible. Rotor Q-Rings have less teeth on its dead center which makes you go faster past this point. The next thing that happens is that you feel maximum resistance, at this point you can get maximum power out of your rotation. With this technology you will pass your dead center faster which ensures less power loss before you point of maximum power. This results in an efficient pedal movement, and less fatigue in your muscles.

The technology behind the rotor is characterized by efficiency. Rotor believes in fact that its products are initially not so much 'faster' but it's mostly the efficient pedal movement which improves the actual net time.

Several scientific studies have proven the positive effect of Rotor Q-Rings chainRings. Perhaps even the best proof is the many victories achieved in the pro peloton on Rotor Q-Rings / QXL-Rings.

Manufacturer specifications

Usage: Road, Triatlon, Gravel
Material: 7075 T6 aluminium
Technology: OCP system
Verhouding: 53-39, 52-36, of 50-34
Compatibility crank: Shimano Dura ace R-9100, Ultegra R8000, Rotor ALDHU 3D +
Compatibility chain: 9x, 10-speed or 11-speed
Ovality: 12.5%, adjustable to 1 °.
Colour: Black