Rotor aero NOQ chainrings for Shimano 12S (54-55-56-58T)

The Rotor chainrings are available in aero and round versions with 54, 55, 56, and 58 teeth (double chainrings). It is recommended to pair them with chainrings of 42 or 44 teeth, depending on the model.
The chainring is CNC machined from aluminum, and a pin is placed on the chainring to prevent the chain from getting stuck behind the crank arm in case of derailment.
Compatibility is as follows:
-Shimano 12-speed cranksets (by installing the thin spacer on the crankset axle)
-Shimano 11-speed cranksets (without spacer)
-Rotor cranksets: on all 4-arm spiders from the brand, including classic, glossy, aero, and Inspider.
www.velo-perso.com/en/shimano...
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