Recommended Trailer Tire to Replace Size 205/75-14

Question:

IF THE TRAILER MANUFACTURER SPECIFIES ST 205/75-D14C CAN I USE 205/75 R 14 I HAVE ALWAYS USED 205/75 R 14 ON MY BOX TRAILERS HAULING 4-6 APPLIANCES AND THEY HAVE GIVEN ME NO PROBLEMS EVEN UNDER EXTREAM WEIGHT THESE 4 TIRES WOULD BE FOR A 3000 LB TRAVEL TRAILER

asked by: LEX

Expert Reply:

Yes, you can use an R series tire over a D. The difference is the construction. D means bias-ply and R is the more preferred radial.

The difference lies in how the tire is constructed. The cords inside the tire are run in different directions. On a bias tire, the cords run at a 32 degree angle at a bias to the direction of travel. On a radial tire, the cords will run at 90 degrees or perpendicular to the direction of travel, across the tire.

Because of the way it is constructed, a radial tire will has more flex and will allow ground contact that is more even, which will improve traction and provides more stability.

The radial tire will normally run cooler if not overloaded, which will help the tire last longer, especially when the tire is under a load.

In your size of ST205/75R14 the Westlake part # 274-000012 is the best option we have. It has a weight capacity of 2,040 lbs at 65 psi, a speed rating of 75 mph and comes with a 2 year roadside program.

If your RV or trailer has a flat tire, call the help line and a technician will come change the flat for you. You can call 24 hours a day, 7 days a week, and 365 days a year from anywhere in the United States, Canada, or Puerto Rico.

expert reply by: Jameson C