Groupset, yes full madness, If I upgrade this I'll stick with mechanical mainly owning to cost. New shifters an possibly new brakes and rotors (140mm is a bit rubbish) Plus these are RS505 shifters an brakes so they are alright but the shifter will break eventually. Yeah I went kind of the other way wheel wise, so my 700's have some G ones on them, of I have a set of Rubino slick's where the 650s are Vittoria Teranno Zeros, so fat 47c slicks. I stuck with tubes as I am lazy, plus I never had luck with tubeless, ended up stuck middle of no where no signal an a tyre that basically tore itself in half. long old walk home that was! Since then, tubes for me.