I have a 1971 cb350 and in need of tires. What are you guys running? I am thinking of going 90/90 18" fronts and 110/90 18" in the rear. Will i have any regrets going 110/90 in the back? Im about to pull the trigger on some Maxxis Promaxx (i know i know about the china tires but 30 hp doesnt scare me to run them) Anyone have experience with the promaxx line? Let me know guys.