{"product_id":"rockman-trailer-tire-st175-80r13-6-ply-load-range-c-durable-safety","title":"ROCKMAN Trailer Tire ST175\/80R13 6-Ply Load Range C - Durable Safety","description":"\u003cp\u003eIn this review of the ROCKMAN Trailer Tire ST175\/80R13, the bottom line is straightforward: these tires are for trailer owners who want a clear safety and durability upgrade over basic replacement tires. The reviewer found the biggest reason to buy is the full nylon cap ply overlay across the entire tread area, a safety feature that most competitors only apply as shoulder strips. For those hauling loads and covering highway miles, these tires balance reinforced construction with a deeper tread for longer life.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull nylon cap ply overlay:\u003c\/strong\u003e Provides enhanced heat resistance and carcass protection across the entire tread area for safer towing on long trips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7mm tread depth:\u003c\/strong\u003e Deeper tread than many competitors for improved wear life and longer service between replacements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-ply, Load Range C:\u003c\/strong\u003e All Trail ply rating and robust sidewall support to handle trailer loads up to the specified limit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad index 91 (1360 lbs):\u003c\/strong\u003e Clearly rated capacity per tire, making weight planning straightforward when matching to trailer requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed rating 91 (up to 81 mph):\u003c\/strong\u003e Suitable for typical highway speeds when towing, meeting common trailer speed demands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOT safety certification:\u003c\/strong\u003e Meets or exceeds applicable DOT standards for dependable season-to-season performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe ROCKMAN ST175\/80R13 is aimed at recreational and light-commercial trailer owners who tow gear, small boats, or utility loads and want a noticeable safety and longevity improvement over inexpensive, thin-tread options. Owners who value reinforced construction and predictable load ratings will appreciate the full nylon cap ply and 7mm tread depth.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include buyers needing specialty tires for high-speed commercial trailers beyond the 81 mph rating or trailers requiring a different rim width or load class; always check fitment for your specific hub and trailer application before purchase.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFull nylon cap ply overlay enhances overall tread protection and heat resistance compared with shoulder-only reinforcements.\u003c\/li\u003e\n\u003cli\u003eDeeper 7mm tread provides longer tread life and better value over time versus thinner- tread competitors.\u003c\/li\u003e\n\u003cli\u003eClear load index and speed rating make load planning and safe towing straightforward.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFitment guidance is general; buyers must verify the tire will fit their specific trailer setup rather than rely solely on the reference guide.\u003c\/li\u003e\n\u003cli\u003eAs a trailer-specific tire, it is not designed for passenger car use and is limited to the specified load and speed ratings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eTire Size\u003c\/td\u003e\n\u003ctd\u003eST175\/80R13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eROCKMAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePly Rated\u003c\/td\u003e\n\u003ctd\u003e6 (Load Range C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTread Depth\u003c\/td\u003e\n\u003ctd\u003e7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Load\u003c\/td\u003e\n\u003ctd\u003e1360 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Index \/ Speed\u003c\/td\u003e\n\u003ctd\u003e91 \/ M (up to 81 mph)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRim Width\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe ROCKMAN ST175\/80R13 is a practical upgrade for trailer owners who prioritize safety and durability without paying for heavy-duty commercial tires. The full nylon cap ply and the deeper 7mm tread deliver sensible value and longer service life, making these tires a strong choice for hauling ordinary loads and recreational trailers.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these tires DOT compliant?\u003c\/strong\u003e\u003cbr\u003eYes, the tires meet or exceed applicable DOT standards for trailer use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum load per tire?\u003c\/strong\u003e\u003cbr\u003eThe load index 91 indicates a maximum load of 1360 lbs per tire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these fit my trailer rim?\u003c\/strong\u003e\u003cbr\u003eThe tire is listed for a 5 in rim width but buyers should verify fitment against their trailer specifications before purchase.\u003c\/p\u003e","brand":"ROCKMAN","offers":[{"title":"Default Title","offer_id":48641591738587,"sku":"B0DQRCGFX5","price":195.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71sKWoBi7ZL._AC_SL1500.jpg?v=1778695946","url":"https:\/\/gearmusthave.com\/products\/rockman-trailer-tire-st175-80r13-6-ply-load-range-c-durable-safety","provider":"GearMustHave","version":"1.0","type":"link"}