{"product_id":"calu-luky-18x8-50-8-18x9-50-8-butyl-inner-tube-2-pack-with-tr-13-valve-stem-8-rim-fit-improved-air-retention","title":"CALU LUKY 18x8.50-8 \/ 18x9.50-8 Butyl Inner Tube 2-Pack with TR-13 Valve Stem — 8\" Rim Fit, Improved Air Retention","description":"\u003cstrong\u003eThese CALU LUKY 18x8.50-8 \/ 18x9.50-8 butyl inner tubes with TR-13 valve stems are a durable two-pack replacement made for 8-inch rims on golf carts, lawn tractors, wheelbarrows and similar equipment.\u003c\/strong\u003e\n\n\u003cp\u003eWhen a flat tire sidelines yard work or a round of golf, having the correct size inner tube on hand restores mobility fast. CALU LUKY offers two 18x8.5\/9.5-8 inner tubes constructed from butyl rubber for improved air retention and wear resistance versus natural rubber. Each tube includes a straight TR-13 valve stem sized for 8\" rims and is compatible with a broad range of garden, utility and light-vehicle applications.\u003c\/p\u003e\n\n\u003ch3\u003eWill these inner tubes fit my golf cart or lawn mower?\u003c\/h3\u003e\n\u003cp\u003eThese tubes are sized for tires marked 18x8.50-8 or 18x9.50-8 and designed for rims that are 8 inches in diameter with widths between 8.5\" and 9.5\". Confirm your tire sidewall markings and rim dimensions before ordering to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits tire sizes: 18x8.50-8 and 18x9.50-8\u003c\/li\u003e\n  \u003cli\u003eRim diameter: 8 inches; rim width: 8.5\"–9.5\"\u003c\/li\u003e\n  \u003cli\u003eCommon applications include golf carts, lawn tractors, tillers and trailers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable are these butyl inner tubes for frequent use?\u003c\/h3\u003e\n\u003cp\u003eMade from premium butyl rubber, the CALU LUKY inner tubes resist air loss and aging better than many natural rubber alternatives. They offer elastic damping for a smoother ride and hold up well under regular yard, farm, and utility tasks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eButyl construction improves airtightness and longevity\u003c\/li\u003e\n  \u003cli\u003eResistant to cracking and accelerated degradation from weather\u003c\/li\u003e\n  \u003cli\u003eSuitable for home, commercial and light industrial use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation — can I replace a tube myself?\u003c\/h3\u003e\n\u003cp\u003eInstalling these inner tubes is straightforward for anyone with basic tire tools. Most users can remove the tire, swap the tube, and re-seat the tire in under 10 minutes depending on experience and equipment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes TR-13 straight valve stem compatible with standard air pumps\u003c\/li\u003e\n  \u003cli\u003eQuick replacement process: deflate, unseat bead, swap tube, inflate\u003c\/li\u003e\n  \u003cli\u003eNo special adhesives or curing required — ready to inflate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich machines and tools are these inner tubes suitable for?\u003c\/h3\u003e\n\u003cp\u003eThe 18x8.5\/9.5-8 tube serves a wide range of small-wheeled equipment used in gardening, landscaping, and light transport. Its size and valve type make it a common replacement part for many household and commercial machines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGolf carts, John Deere-style lawn tractors and mowers\u003c\/li\u003e\n  \u003cli\u003eWheelbarrows, hand trucks, trolleys, and small trailers\u003c\/li\u003e\n  \u003cli\u003eSnow throwers, tillers, generators, compressors and similar units\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you maintain lawn and garden equipment, run a small landscaping business, or keep a trailer, generator, or golf cart in service, this two-pack of CALU LUKY inner tubes is a practical spare or repair set. Homeowners who prefer to do basic maintenance themselves will appreciate the durable butyl construction and easy installation, while small shops and rental fleets will value the reliability and broad compatibility for 8\" rim applications.\u003c\/p\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: Do these tubes fit both 18x8.50-8 and 18x9.50-8 tires?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They are designed to fit 18x8.50-8 and 18x9.50-8 tires on 8\" rims with widths between 8.5\" and 9.5\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What valve type do these inner tubes use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each tube uses a TR-13 straight valve stem, compatible with common air pumps and tire inflators.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CALU LUKY","offers":[{"title":"Default Title","offer_id":48087620845726,"sku":"B0BDD2DVGR","price":39.66,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/calu-luky-front-packaging-18x8-50-8.jpg?v=1785926998","url":"https:\/\/northtrailauto.ca\/products\/calu-luky-18x8-50-8-18x9-50-8-butyl-inner-tube-2-pack-with-tr-13-valve-stem-8-rim-fit-improved-air-retention","provider":"North Trail Auto","version":"1.0","type":"link"}