1. Whats faster?

slick tires at 26 * 1.5 or 26 * 2.125

assuming they are pumped at their optimal psi?


2. Are 700c wheels faster than slicks MTB?


3. Does a larger contact patch have a greater rolling resistance or lesser?


I am going to set up another bike and unsure whether i should go the mtb route or 700c direction.