I just bought an 07 yz450f that has a full Two Brothers M7 (i believe) exhaust. I've noticed that when the suspension compresses and the rear tire travels up, it will rub against the exhaust. Is there anything I can do for this? I believe there is a 100/90/19 rear tire on it at the moment. It's not really a big deal, but i was curious is anyone else has experience this.