Well, not necessarily. A bike that’s got a full carbon frame also absorbs shock and vibration from the road better. This means you can ride longer distances without getting fatigued in places like your wrists or ass. Longer rides = more exercise.
But once you have a carbon frame, chasing grams on other components gets to be a bit silly.
SpongyAneurysm@feddit.org 3 hours ago
Well, not if you still want to have some fun while doing so.
But I agree, that a regular bike should suffice and you don’t need to worry about optimizing gear weight if you’re not competing for anything and just ride it for your own well-being.