Originally Posted by ofofhy
I actually run a 25 up front and a 23 on the rear, as I think the front takes most of the abuse (trolley tracks, pavement cracks, and the occasional rear taxi bumper).
that's interesting. i run a 2.5 in the front and a 2.3 in the rear on my mtb for the same reason. i've never thought of running a bigger tire in the front on a fixie or road bike. i have the attack/force tires on my road bike and they are 23 in the rear and 22 in the front.