New Sora 9 speed?
I'm in the market for a new groupset, upgrading my Shimano 2300s.
I was looking at the 105 group then I saw the new Sora 9 speed and apparently there's also a new Tiagra 10 speed?
Does anyone have experience with them, how good are they? Should I just stick to the 105's or are the new groups worth bang for the buck?