redriderCRF25oR

I think 450's come with a 110 rear. But they have a 2.15 rim, 250's have a 1.85 inch rim. I'm considering useing the 110 but am worried about de-beading the tire rubbing the swing arm or just wasting time and money by chasing traction. Same thing with the front 90/100. Thanks for the input, Andrew

Is anybody using a 110 rear tire? If so what do you think of it. And has anyone used the 90/100 front? Andrew