1x is specifically for situation it calls for , like a cyclocross race you just dont need much range , or an MTB race where you are mostly ripping down hill , outside of the specific situations , its a pointless system , for any serious road or gravel 2x is the minimum , because it gives you the most range and efficiency , a triple will give you the straightest chain possible but is usually the heaviest , a 1x12 speed makes no logical sense and is just a marketing ploy
