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They have the word ‘mountain’ etched on the cups so fairly sure!
But confusingly the website lists them as road/XC.But you could in theory run them with a road crank on a 68mm shell. I think you could install them with no spacers. But the middle plastic axle sleeve might need to be swapped out for a shorter road variant.
That’s a lot of a if’s and but’s though. Maybe someone who’s done this could chime in!?
is the aerozine for MTB or road cranks?