How to Avoid Trailer Tire Blowouts 2
Preventive measures that can be taken to help prevent trailer tire failures on trailers. Remember to check air pressure, avoid overloading, and never exceed the tire's speed rating. In addition, use the following standard as a guide for the greatest safety margin when operating your trailer.
GVWR of 10,000-12,000/lbs = 235/80R16 LRE
GVWR of 12,000-14,000/lbs = 235/85R16 LRG
GVWR of 14,000/lbs or more = 225/70R19.5 LRG