why do you want to take a good hub out of a good wheel? do you really think you will know the difference riding down the road?
I would say they are the same as it does not make sense to make a different hubshell for 6 different levels. you can always measure them and check
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk