Originally Posted by
Iride01
I might be wrong, so someone might have to straighten me out. Your Tuscany frame is a road bike frame. Shimano CUE's that you mention is not a road group. It's a group Shimano came up with to try to address the bikes that aren't sure what they are. They aren't a MTB but they also aren't a road bike.
If you are looking for a lower cost than Ultegra or the newer 105 12 and 11 speed groups, then Tiagra 4700 10 speed will be a good choice.
If you are intending to make this a flat bar bike, then that will alter most every reply made already.
I just mentioned cues cause I’m most familiar with that side of the market. I’m currently leaning toward a 105 crank. Ultegra seems to gain little for the price. That and a cassette will get it back on the road.
Sticking with the existing 2x setup would certainly be easiest… stepping up to 1x10/11/12 would require a new deraileur, shifter, and hub. I might just save that for later.