Originally Posted by
asgelle
Followed by many words proving my point.
the larger the tire + lower pressure = more rubber on the road. All things being equal, the more rubber touching the road the more traction, grip, whatever you want to call it, will result. In the real world, this always holds true because the area which makes contact with the road is often touching several uneven surfaces and different objects all at one time, so the more rubber you can put on the road, the more rubber which will FIND the road and adhere to it. I live in the real world, not in a lab or velodrome, or closed course so I am interested in what ACTUALLY works.
Sure, the tires in the vid are made of high quality rubber; the rider would have an even better experience descending on very wide, properly inflated tires with the same compound.