Originally Posted by
wolfchild
The speed difference and rolling resistence between 700x28 or 700x38 or 26x2.00 is irrelevant for commuting, it's so minor that majority of people wouldn't even notice it. Speed and rolling resistence may be important for racing but not for commuting.
i sometimes climb 1600 feet on my commute and i can assure you i would notice the extra lb of rotational mass of a 700x37.