last fall i picked a fluid trainer from craigs list that came with a drop bar1986 bianchi strada. i got the bike up and running for street use. i have been on flat bars for some years, but found i can now use the drop bars once more, bianchi magic i reckon. on the flat bar bikes i use bar end mirrors but that will not work with drop bars because i have friction shifters sticking out the end of the bars. what is a good setup for a helmet mount mirror?