Can ST205/75R14 Tire be Replaced with ST205/75D14 Tire on Boat Trailer

Updated 05/02/2019 | Published 05/01/2019

Products Featured in This Question

Loadstar ST205/75D14 Bias Trailer Tire - Load Range C

(3847)

$100.74

Karrier ST205/75R14 Radial Trailer Tire - Load Range C

(2300)

$132.77

Question:

Can you replace a boat trailer tire ST 205/75 R14 with a ST 205/75 D14 tire?

asked by: Roland G

Expert Reply:

As long as you are replacing all the tires on your boat trailer, you can certainly replace an ST205/75R14 with an ST205/75D14 like the Kenda Loadstar # AM1ST86 that you were looking at. These are the same exact size tires but with different ply constructions.

You currently have radial ply tires which typically do a better job on highways because they will flex more and run cooler than a bias alternative. Bias tires will have a stiffer sidewall which makes them a good choice for off road applications like farm use.

I don't recommend replacing just one of your tires so that you have a mix between radials and bias units. This can result in uneven tread wear and may eventually lead to tire failure. If you only need to replace 1 tire then you will want to stick with a radial ply like the Kenda Karrier # AM10234.

expert reply by: Chris R