I am getting this bike back on the road after sitting in storage, it only has 12,000 miles on it now. The tires have got to be older than 2000 if i read the DOT correct. The ft tire reads 3.25 S18 which i think is a 100 90 18 and the rear is a 4.00 S18 = 110 90 18 , which brand and type would anybody recommend to put on this bike. I weigh in about 225 lbs and this bike seems to be one that you might try to hot rod just a little so a sticky tire might be in order.