The Trail America tires are CRAP. Three blowouts in three separate events over 5 days and major damage to my trailer. The trailer is 3 years old with 18,000 km on the tires. Yes, the airpressure was checked before the trip, after the first blowout and before and after the second blowout. We are truck drivers and DO OUR CIRCLE CHECKS, including air pressure, tread inspection, tire cracking, cupping, etc. Six ply LT tires should not be going on these trailers PERIOD.