300ex hubs on 400ex spindles?

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i'm swapping my front end over to 400 spindles and i've noticed that both hubs (along with the 250r) use the same bearings. are all these hubs interchangeable, then? i'd really like to save myself that extra 50 bucks or so if possible

they are the same hubs on the 250ex, 300ex, old 250x and the 400ex

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Originally posted by speedyquad
they are the same hubs on the 250ex, 300ex, old 250x and the 400ex

YES. AWESOME. thank you! haha