>>1500548I prefer Shimanos new shifting chain guide system.
You no longer have to chose between a small chainring or a large one, in fact you can use up to 3 different chainrings on the same bike.
That allows you to use your MTB not only as a MTB, but as a flat bar gravel bike as well and maintain decent speeds on the way to the trails.
Be it on the steepest climb or a slight descent, you will never run out of gears again.