I do n ot think so. if the brifter is designed for 9spd it willl not shift on 10spd. as for the cassette he should be able to find a wider range what does he have now?
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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