I have a 2011 yz450 and have tried a few combinations to get the front to not push in the corners and have gotten it better in the almost 2 years I have owned it. I have tried the 80/100/21 that came on it and currently have a mx 51 90/100/21 that I am going to refreash. But.... My local shop doesn't have one in stock and says they are not available anymore as if they have discontinued them (parts unlimited I think). They have the 80/100/21 and also have a 90/90/21. Has anyone run this new size front tire on this bike? I want something that turns better for me than the stock 80/100/21. I have had the forks revalved and have tried moving the forks up and down in the triple camps. I have been fairly satisfied with the 90/100/21 but can't get it apparently. So, what do you think about the new size?