well I came to the conclusion after 2 flats in a month with the factory carlisle tires there junk !!! I went with Maxxis Zillas there about the same weight and are awesome I got the same size 26 inch that My outty max had on from the factory, I didnt want to go up a size because they make them an inch wider and I didnt want to deal with a chance of rubbing. the 26 inch fit great no rubbing and the huge grips made it stand taller with the proper pressure of 7lbs it now stands 13 inches off the ground it measured 11 before the grips are huge, surprising its a smooth ride with that aggressive of a 6 ply tire