I have a low end road bike which is a 14 speed. It has a Shimano 2200 derailer and currentyly uses a 7 speed cassette with a spacer... the shifters are 7 speed indexed stem shifters.
if I wanted to upgrade to using an 8 speed cassette
could I use the stem shifters in "friction mode"? or would I need to go to a bar end shifter?