I have a Campi 8spd cassette that I am running with DA Intigrated 8 DT shifters and RD. it seems to work OK to me. if you have an extra cassette it is worth trying atleast
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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