{"product_id":"sportyouth-18x8-50-8-18x9-50-8-inner-tubes-2-pack-heavy-duty-tr-13-straight-valve-for-mowers-golf-carts-atvs","title":"SPORTYOUTH 18x8.50-8 \u0026 18x9.50-8 Inner Tubes (2 Pack) – Heavy-Duty TR-13 Straight Valve for Mowers, Golf Carts \u0026 ATVs","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eDiscover the SPORTYOUTH 18x8.50-8 and 18x9.50-8 inner tubes, offered as a convenient 2-pack. Each tube features a TR-13 straight valve stem designed for quick, reliable inflation, and is sized to fit on 8-inch rims with an 18-inch overall diameter. These tubes are built to support steady performance across a variety of equipment, from home use to light professional settings.\u003c\/p\u003e\n\n\u003ch3\u003eWhy these tubes work for you\u003c\/h3\u003e\n\u003cp\u003eDesigned for versatility, these inner tubes serve as practical replacements for a wide range of machines and carts. Whether you’re maintaining lawn gear, keeping a golf cart ready for your weekend rounds, or keeping wheelbarrows and go-karts in dependable working order, the universal fit helps simplify maintenance and reduces downtime.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits tires sized 18x8.50-8 and 18x9.50-8 on 8-inch rims (18\" overall diameter).\u003c\/li\u003e\n  \u003cli\u003eIncludes TR-13 straight valve stems for straightforward inflation with common pumps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHeavy-Duty construction for real-world use\u003c\/h3\u003e\n\u003cp\u003eThese inner tubes feature premium rubber with noticeably thicker walls—approximately 4X thicker than standard tubes. This design supports better airtightness, improved impact absorption, and greater aging resistance, making them suitable for regular handling in workshops, gardens, and light industrial settings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e4X thicker walls deliver stronger durability against everyday wear.\u003c\/li\u003e\n  \u003cli\u003eEnhanced airtightness helps maintain steady pressure under use.\u003c\/li\u003e\n  \u003cli\u003eResistant to aging and cracking, even with storage and recurrent use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSmart, cost-conscious replacement\u003c\/h3\u003e\n\u003cp\u003eExtend the life of existing tires by swapping in a high-quality inner tube instead of purchasing a new tire. The installation process is straightforward and can be completed in minutes, minimizing downtime during busy seasons.\u003c\/p\u003e\n\n\u003ch3\u003eNotes for best results\u003c\/h3\u003e\n\u003cp\u003ePackage includes 2 tubes sized 18x8.50-8 \/ 18x9.50-8 with standard TR-13 straight valve stems. Maximum inflation is 25 PSI. Inflate with a manual pump and avoid overfilling. These tubes are intended for off-road or non-road use, not for highway use.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 x SPORTYOUTH inner tubes (18x8.50-8 \/ 18x9.50-8)\u003c\/li\u003e\n  \u003cli\u003eTR-13 straight valve stems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What machines can SPORTYOUTH 18x8.50-8 and 18x9.50-8 inner tubes fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit 18x8.50-8 and 18x9.50-8 tires on 8-inch rims, including mowers, golf carts, ATVs, wheelbarrows, and more.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the inflation and safety notes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes 25 PSI max; inflate with a manual pump; not designed for road use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SPORTYOUTH","offers":[{"title":"Default Title","offer_id":45744338075834,"sku":"B0CH9PD9MR","price":73.35,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/sportyouth-18x8-50-8-inner-tube-pack-front-view.jpg?v=1774944574","url":"https:\/\/gardencanada.ca\/products\/sportyouth-18x8-50-8-18x9-50-8-inner-tubes-2-pack-heavy-duty-tr-13-straight-valve-for-mowers-golf-carts-atvs","provider":"Garden Canada","version":"1.0","type":"link"}