Actually, the Westlake tires that came on our 2450FB are highly rated by customers on E-trailer.com. That said, the service manager where we bought the trailer recommended that we replace the tires after 2 years, regardless of tire wear. We waited 3 yrs., had no problems until we ran over a nail on our last trip, so we replaced the tires with Carlisle tires that have good reviews also, and Discount Tires was able to install them at no extra charge on the trailer. All that said, here are two big issues:1. Be fanatical about checking and adjusting tire pressure before every trip. 2. Purchase a good TPMS (Tire Pressure Monitoring System). I purchased the TST-507-RV-4-C system and it has been worth every penny. Returning from our last outing, we ran over a nail and the system immediately sounded a 'Low Pressure' warning indicating the driver side rear axle tire. I was able to reduce speed, pull into a nearby Walmart parking lot, put on the spare and we were safely back on the road in 30 minutes. I would not be without the safety and piece of mind provided by a good TPMS.