Right Facanh, you brought up 700x40 tires in your post, immediately following the OP’s original post. One might wonder why you brought up the subject but object to someone else illustrating the same thing? I have a Rocky Mountain Sherpa MTB for rougher trails, listed in my bikes.
If you wanted to know why I was converting a bike to a more hybrid set up it might have been more appropriate to just ask, vs disparaging my post.
I was influenced by an old buddy who rode a very light street bike, largely on roads, who I thought I might be trying to “keep up with”. I have no desire to ride on the paved roads in and around Atlanta. I bought the bike to ride on the many bike paths and trails in and around Atlanta. I was living on a 12 acre Dog Park, with dog walking trails. I was riding with groups of working dogs, exercising myself and the dogs simultaniously.
Later we bought a new home in North, GA. There is a network of narrow, paved/sand & gravel covered roads, with tight turns. I want to ride with my wife who rides at a slower pace on here MTB, which is geared much lower. I need to be able to move at slow paces up hills when I am riding with her. There are long steep drops at the edges of the roads I will be riding, black bear roam the area. I am happier riding a bike I can exit quickly should the need arise. There may be sharing of bikes among family and friends who may have little or no experience.
I thought the purpose of this forum was to discuss bike builds and modifications for a variety of environments?