{"product_id":"st175-80d13-trailer-tires-set-of-4-heavy-duty-bias-d","title":"ST175\/80D13 Trailer Tires Set of 4 - Heavy Duty Bias D","description":"\u003cp\u003eIn this review of the ST175\/80D13 trailer tires set, the bottom line is simple: this set is best for owners of small to medium trailers who need affordable, heavy duty bias tires built for load capacity and longer tread life. These are a set of four new ST175\/80D13 bias tires with an 8 PR load range D rating and a deeper tread pattern intended to extend service life. The reviewer found them to be a sensible choice when maximum single-tire load capacity and rugged trailer-only construction matter more than premium highway comfort.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet of 4 new tires:\u003c\/strong\u003e Buying a matched set ensures consistent wear and load handling across all trailer wheels for predictable towing behavior.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 PR, Load Range D:\u003c\/strong\u003e The 8 ply rating and D load range provide a high maximum load of 1,570 lbs at 65 psi, suitable for many utility and travel trailers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeeper tread design:\u003c\/strong\u003e The deeper tread offers extended tread life and improved durability under trailer loads compared with shallow-tread alternatives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrailer-specific bias construction:\u003c\/strong\u003e Built specifically for trailer use, the bias construction prioritizes load carrying and trailer stability over passenger-vehicle ride comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne year limited warranty:\u003c\/strong\u003e A distributor-backed limited warranty gives buyers protection against early defects for the first year of service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe ST175\/80D13 set is ideal for owners of small utility trailers, boat trailers, and campers that specify 175\/80D13 tires and require a robust load rating. It suits fleet customers or individuals who prefer buying a matched set and need the higher 1,570 lb single-tire capacity that a Load Range D tire provides.\u003c\/p\u003e\n\u003cp\u003eThose who want a softer ride or tires rated for sustained highway passenger use should look elsewhere, since these are trailer-only tires with bias construction and are optimized for load bearing rather than low-noise cruising. If exact width fitting is critical, verify rim and fender clearances, as some customers note the tires can run narrower than expected.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurable construction with an 8 PR rating that supports heavy trailer loads reliably.\u003c\/li\u003e\n\u003cli\u003eDeeper tread for longer service life compared with basic trailer tires.\u003c\/li\u003e\n\u003cli\u003eGood value for a matched set of four new, first-quality tires with a warranty.\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for trailer use, reducing the risk of premature wear from inappropriate vehicle use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome buyers report mixed fit and size feel, with a few saying the tires run narrower than expected.\u003c\/li\u003e\n\u003cli\u003eThere are isolated reports of tires arriving with very low tread; inspect tires on receipt and use the warranty if needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eTire Size\u003c\/td\u003e\n\u003ctd\u003eST175\/80D13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFree Country\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePly \/ Load Rating\u003c\/td\u003e\n\u003ctd\u003e8 PR, Load Range D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Diameter\u003c\/td\u003e\n\u003ctd\u003e24 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSection Width\u003c\/td\u003e\n\u003ctd\u003e6.8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTread Depth\u003c\/td\u003e\n\u003ctd\u003e0.29 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Load (single)\u003c\/td\u003e\n\u003ctd\u003e1,570 lbs @ 65 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe ST175\/80D13 trailer tire set is a practical, value-oriented choice for trailer owners who need a strong load capacity and longer tread life from a trailer-only bias tire. For those replacing all four tires or outfitting trailers in fleet quantities, the matched set, deeper tread, and one year limited warranty make it a straightforward, cost-effective option.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre rims included?\u003c\/strong\u003e\u003cbr\u003eNo. These tires are sold as new tires only; rims are not included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan these be used on passenger cars?\u003c\/strong\u003e\u003cbr\u003eNo. They are designed for trailer use only and are not intended for passenger-vehicle applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum load per tire?\u003c\/strong\u003e\u003cbr\u003eEach tire is rated to carry up to 1,570 lbs at 65 psi.\u003c\/p\u003e","brand":"Free Country","offers":[{"title":"Default Title","offer_id":48656859103451,"sku":"B01IU2LRJ2","price":270.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81sDJ86NSKL._AC_SL1500.jpg?v=1778556204","url":"https:\/\/gearmusthave.com\/products\/st175-80d13-trailer-tires-set-of-4-heavy-duty-bias-d","provider":"GearMustHave","version":"1.0","type":"link"}