Hey Everyone Just a curious mind. I just bought a 2008 DRZ 400S and realized the tires are Brutal off road. How does this tire sizing work. I did searches and read that some of you drz owners run teraflex 150/90 18 tires on the back. How is this possible if the tire size is 120/90 18? So what I am asking is what different sizes of tires can I put on? 110/100, 120/100, 150/90, 100/100????? This is confusing. Thanks in advance guys Chris.