on our trip to the fort this 4th of july we saw about 30 rv's with flat tires.these trailers and motor homes had a lot of damage luckily no one crashed. so if your tires are 5 yrs. old or older your should change them.if not sure of age have a tire store check the code on the tires. cost to fix damage to rv is more then replacing tires and keeping everyone safe is more reason. so check those tires and have a wonderful time. ps it's no fun changing a tire when it's 90 out on the side of the interstate and it's not safe. good luck.