Early the 2020 season I wrecked my Dura Ace 9000 outer chainring due to a chain-suck and replaced it with the Rotor Aero noQ chainring, 4-arm, 110 mm bolt circle diameter.
I will share my thoughts so far and have a look at the design details of the Rotor chainring, decision reasoning and installation on the Dura Ace 9000 cranks.