Difference Between Trailer Tires ST205/75D14 and ST205/75R14
Question:
What is the deference between a st205/75D14 and a st205/75R14
asked by: Walt
Expert Reply:
Tire designations ST205/75D14 and ST205/75R14 are both for special trailer tires with a 205mm width, 75-percent aspect ratio and that fit a 14-inch wheel. The difference between them is the tire's type of construction.
The ST205/75D14 tire is a bias ply type with a Load Range D rating. This size/grade tire has a weight capacity of 2,100-lbs at 65 psi. Lower capacity C- and B-rated tires in this size offer weight ratings of 1,760-lbs at 50 psi and 1,430-lbs at 35 psi, respectively. For example, # AM1ST86 is a Load Range C bias ply tire.
The ST205/75R14 tire is radial type that will typically run cooler than a bias ply and this means it will be likely to last longer. Also a radial tire flexes more than a bias ply tire, giving it better ground contact, traction, stability, and tread wear.
I have linked you to a series of articles on trailer tires and wheels that may be of interest to you. We offer tires and wheels alone, and also pre-mounted tire/wheel combinations, that can be seen on the link provided for you.
Capt B.
11/11/2021
I have had no good luck with Kenda or Good year trailer tires. Constant blow outs at highway speeds on my tandem axle boat trailer, Tire with less than 400 mile & less than 6 months old. I am considering a light truck tire instead of a trailer tire
Products Referenced in This Question
Loadstar ST205/75D14 Bias Trailer Tire - Load Range C
- Trailer Tires and Wheels
- Tire Only
- Bias Ply Tire
- Load Range C
- 205/75-14
- 14 Inch
- Kenda
more information >
Product Page this Question was Asked From
Karrier ST235/85R16 Radial Trailer Tire - Load Range E
- Trailer Tires and Wheels
- Tire Only
- Radial Tire
- Load Range E
- 235/85-16
- 16 Inch
- M - 81 mph
- Kenda
more information >
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Ronald
4/14/2024
Thankyou, My trailer will just sit in the parking lot. I do not take it on the road except to service the boat a couple of miles away. Will the ST205/75D14 be ok?