Tire size difference on ’97 TRX300

I’ve noticed that some guys(and gals) run 25" or 26" tires on front and rear of 2wds. I can’t remember what the factory size tires on mine are, but I believe that the front is slightly shorter than the rear. Does Honda do this in order to make it slightly nose heavy to reduce chances of flipping on steep terrain? If so, I’m guessing that putting the same size tire front and rear would shift the center of gravity towards the rear, making the front a little lighter?