Sounds kind of high for two tires. Tires on my chopper are 6 years old and the tread looks new but the tire cracked at the base of the tread at the side wall. Tire shop came out at 5 pm and put a boot on it and said it wouldn’t hold and didn’t have a tube. It went flat in 3 hours had to put a new tire on it 710/70 R 38 cost around $2000. They said if it had been a Firestone tire it would of happened a couple years earlier