Originally Posted by
GhostRider62
I 3) Crr is not a constant, it increases with speed and lower temperatures-some tires are surprisingly better than others in that regard.
I can definitely attest to this temperature effect. When I ride in winter, I can clearly feel the extra work needed to ride when it is low 30s F vs say 50 F due to the tires (Continental Race King) being stiffer. And those have their “Black Chili” rubber and are some of the faster rolling MTB tires around. Not a criticism of those particular tires, as all tires get stiff in the cold.
Otto