Originally Posted by
MadDog1999
Hey guys,
Sorry for my period of inactivity on this forum. I have now finally gotten my first road bike and love it to bits. But could I get Shimano STI shifters and use them with a different groupset? For example, a tiagra STI lever wth the paddle behind the brake lever on a Shimano 2300 groupset? This has made me pretty curious!
Thanks!
10 speed tiagra 4700 wont work as it has a different pull than previous tiagra STIs. Same with the new sora r3000.
With that said, if you get STI shifters where the cables exit the side of the shifter in the middle of the bike(vs hidden under tape), you should be good.
This means older ultegra or 105 will work too. Keep it to 9 speed and there will not be a problem at all.
You will of course need a new cassette to match the # if cogs to the shifter speed.
Also- if you want to consider Microshift brand shifters, they make excellent 9sp shifters for the money. I have some 7sp shifters made by them and the 9sp is the same quality and functionality- really solid and good price.