I was thinking the same thing. Moreover, I question the whole idea of plowing through potholes. Even with suspension, I would think jumping over or riding around potholes and other obstructions would be a better idea.

I have an old Trek 930 with a solid fork and 26 x 1.9" tires. The True Temper frame and fat tires make for a very comfortable ride, but no way the bike is anywhere close to 23 lbs.