Shimano SLX ZEE DEORE SM-RT66 RT76 RT86 Rotors de frein à disque 160mm 180mm 203mm VTT 6 boulons Type Rotors de frein à disque Pièces de vélo - AliExpress
How do I know which one is genuine on SM-RT66 rotors? One says made in China (SK) while other says Japan (RA). Both has different edges. Please confirm. Got china one from
Shimano SLX SM-RT66 180mm Disque de frein 6 trous - Freins et garnitures de frein - Composants - Vélos - Tout