I've done much searching, and am ready to change the tires on my 07 with 200 miles. After a terrible sand experience last weekend with the stock "Deathwings", I'm puttin' some Dunlops on this weekend. For the rear, I have 3 choices: 130/100 18, 130/90 18, or 120/90 18. I've heard the 130 may rub. Is that true? I know a taller tire like the 130 my affect my stock gear ratio adversely. I may go a tooth or two bigger in the rear eventually. I've just heard the 120 does not bite as well. For the front I've only seen one choice: 100/90 21. Any comments? Gonna buy in less than 3 days, so feel free to comment! D!