ST 225-75R-15 Tire Recommendation for Travel Trailer

Question:

I have a RV with UVW at 7772 lbsHitch weight at 1067 lbs Standard Tire on RV is ST225-75R-15 Range D Would I be better served to go to Range E and also would you recommend Radial vs BiasPly? Thanks,

asked by: David

Helpful Expert Reply:

For your tire size of 225/75-15 I would recommend the part # TR225LRE. This tire has a capacity of 2,830-lb max load at 80 psi and a higher speed rating of 81 mph compared to most trailer tires that are only rated for 65 mph.

Our customers who have tried the Taskmaster tires here really like them so we recommend them highly.

Radial tires are much preferred over bias ply tires for a number of reasons.

The main difference between a radial ply and a bias ply tire is how the tire is constructed. The cords inside a bias ply tire run at a 32 degree angle to the direction of travel, and the cords on a radial tire run at a 90 degree angle to the direction of travel, or across the tire from wheel lip to wheel lip.

A radial tire flexes more than a bias tire, giving it better ground contact, traction, stability, and tread wear.

A radial tire will normally run cooler than a bias ply tire, especially when the tire is under a load. A tire that runs cooler will last longer.

A bias ply tire has a stiffer sidewall than a radial, a feature that might be useful for off road applications like farm use.