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RotorSpidering Q DM Chainring


Item # RTR0038

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  • Black, 53/39t ($255.00)
  • Black, 52/36t ($255.00)
  • Black, 46/30t ($255.00)
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Item # RTR0038

Spidering Q DM Chainring

Rotor's new Aldhu 3D Crankset brings modularity to a whole new level, reducing the number of pieces you need to dial in your perfect crankset, and the Aldhu Spidering Q Chainring brings you the option of doing so with a cleaner aesthetic, and even fewer parts. The Aldhu Spidering combines two oval Q rings into one sleek piece, allowing you to utilize Rotor's signature 12.5% ovality ring to optimize your efficiency on the bike thanks to its infinitely adjustable direct-mount interface.

Crafted from ultralight aeronautic-grade 7075 aluminum, the Aldhu Spidering Q Chainring is dialed in with precision CNC-machining from a single block with intensely tight tolerances and stiffness to give you reassuring durability at a minimal weight. Because the chainrings are machined together in an integrated piece, Rotor is able to shed weight everywhere possible without compromising on durability. While the chainrings may stay secure to the spider, you don't have to worry about lack of adjustability with the direct-mount interface that can be tweaked degree-by-degree on the Aldhu spindle to find the optimum placement for your most efficient — and comfortable—pedal stroke. The nature of the adjustable oval chainring is in performance, but it also offers relief for injured knees, allowing you to adjust the least resistance into the softest part of your pedal stroke for a much needed break, while targeting your most powerful moments to push you further, with full activation of muscle groups, diminishing knee strain on tedious ride.

  • Lightweight and simplified system for going modular
  • Machined from one piece for ultimate weight savings
  • Direct-mount interface offers infinite adjustability
  • Oval ring optimizes power and reduces strain
  • Aeronautic aluminum stays strong at minimal weight

Tech Specs
Material7075 aluminum
Number of Rings2
Teeth50/34t, 52/36t, 53/39t
Connectiondirect mount
Compatible ComponentsRotor Aldhu spindle and crank arms
Recommended Usecycling
Manufacturer Warranty2 years

Actual Weight

Black, 53/39t
Black, 52/36t
Black, 46/30t

Actual weights are measured in-house by the Competitive Cyclist team.

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Can this chainring be used with existing bottom bracket and crank arms that’s currently on the bicycle,or will those components also have to be replaced ? The current bicycle is a ‘21 Trek Checkpoint ALR 5 with a Shimano GRX FC-RC600 crankset and a Shimano RS500 bottom bracket.