{"product_id":"st185-80r13-9995q-zt301","title":"ST185\/80R13 8PR ZT301 CARGOMAX Trailer Tire","description":"\u003cdiv class=\"product-description\"\u003e\n  \u003ch3\u003eKey Specifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003cp\u003e\u003cstrong\u003eTire Size:\u003c\/strong\u003e ST185\/80R13\u003c\/p\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003cp\u003e\u003cstrong\u003eLoad Index:\u003c\/strong\u003e 99\/95 (Trailer-rated)\u003c\/p\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003cp\u003e\u003cstrong\u003ePly Rating:\u003c\/strong\u003e 8PR\u003c\/p\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003cp\u003e\u003cstrong\u003eSpeed Rating:\u003c\/strong\u003e Q\u003c\/p\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e ZT301 Cargomax\u003c\/p\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003cp\u003e\u003cstrong\u003eTire Type:\u003c\/strong\u003e Special Trailer Tire (ST)\u003c\/p\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Trailer Only – Not for passenger or light trucks\u003c\/p\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTire Features\u003c\/h3\u003e\n  \u003cp\u003e\n    The ST185\/80R13 8PR ZT301 Cargomax is a radial trailer tire engineered for improved load support, stable towing, and consistent highway handling.\n    It’s a great fit for utility trailers, small RVs, and light-to-medium towing where durability and smooth tracking matter.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eBenefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBuilt for Towing:\u003c\/strong\u003e Trailer-specific radial construction improves stability behind the tow vehicle.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStronger Load Support:\u003c\/strong\u003e 8PR build helps handle heavier trailer loads confidently.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWet-Road Stability:\u003c\/strong\u003e Tread channels help resist hydroplaning.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReduced Sway:\u003c\/strong\u003e Towing-optimized tread design supports straight-line tracking.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDurable Casing:\u003c\/strong\u003e Built to handle towing wear and road stress.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eComfortable Towing:\u003c\/strong\u003e Radial design supports smoother ride characteristics.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFAQs\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: Is ST185\/80R13 a common trailer size?\u003c\/strong\u003e\u003cbr\u003e\n    A: Yes, it’s widely used on many utility trailers and smaller RV trailers.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eQ: Can I use this tire on a passenger vehicle?\u003c\/strong\u003e\u003cbr\u003e\n    A: No. ST tires are trailer-only and should not be installed on cars, SUVs, or trucks.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eQ: What PSI should I run?\u003c\/strong\u003e\u003cbr\u003e\n    A: Use your trailer placard and the tire sidewall as the source of truth for inflation pressure.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eBuy ST185\/80R13 8PR ZT301 Cargomax Trailer Tires in Calgary Today\u003c\/h3\u003e\n  \u003cp\u003e\n    Looking for durable, high-performance\n    \u003ca href=\"https:\/\/princetires.ca\/collections\/trailer-tires\" target=\"_blank\" rel=\"noopener noreferrer\"\u003etrailer tires in Calgary?\u003c\/a\u003e\n    Choose the Cargomax ZT301 for stable towing and reliable performance.\n    Shop now at\n    \u003ca href=\"https:\/\/princetires.ca\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ePrince Tires\u003c\/a\u003e.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Cargomax","offers":[{"title":"Default Title","offer_id":53966236909843,"sku":"362113","price":71.54,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0698\/9542\/2227\/files\/st20575r14-8pr-zt301-cargomax-trailer-tire-7488286.jpg?v=1774306574","url":"https:\/\/princetires.ca\/products\/st185-80r13-9995q-zt301","provider":"Prince Tires","version":"1.0","type":"link"}