Replacement Tires for C78-13ST Tires on a 1993 Spartan Boat Trailer

Updated 07/31/2013 | Published 07/30/2013

Question:

the boat trailer is a 1993 spartin with Sport Trax load range c C78-13ST it says 1410 lbs at 50 lbs load nylon plies tread 4 sidewall 2 on the tire what tire would you recommend bias or rad it has a 5 bolt rim thas you so much for your time

asked by: Jerry P

Helpful Expert Reply:

The closest metric tire size to your C78-13ST Sport Trax tires is 185/80D13. The tire that I recommend using is the Kenda Loadstar ST185/80D13, # AM1ST79. This is a Load Range D tire that is rated at 1,725 lbs at 65 psi. This tire will fit 13 inch wheels that are 4-1/2 inches, 5 inches or 5-1/2 inches wide.

At this time we do not carry a load range C tire in this size. Keep in mind, increasing the weight capacity of the tires will not increase the carrying capacity of the trailer.

expert reply by: John H