Originally Posted by
genejockey
Of course! Indexed shifting predates brifters. Indexed DT shifters came out in about 1986 or so, and were available into the mid-90s. I've got bikes with 7 and 8 speed indexed DT shifters.
I had indexed DT shifters on my road bike in the mid 80s through to early 90s. They worked fine and although they had the option to work in friction mode I never used that mode. I think mine was 6-speed Shimano 105. Had a Biopace 105 chainset too, lol