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@Tijmen
Does anyone know about Rotor spider compatibility? I've seen this direct mount 46/30 spidering listed as compatible with old Rotor 3D (so 24mm axle) previously, but can't find it anymore and I'm not sure who to trust (story of my life).
https://r2-bike.com/ROTOR-Chainring-Double-Direct-Mount-Spidering-2-speed-46-30-Teeth-for-Rotor-Crank