you will NEVER see mcfatty wannabee athletes  They are definitely out there. They ride extremely short distances at a very slow pace. They push their bikes further then riding them. They push up the middle of hills, and stop in the middle out of breath, unable to move further. They rarely make room to pass in either direction. It is somewhat rare but i do see them out there. the closer you get to a trail head the more likely you will see fatty  cyclists.