{"product_id":"gdhswj-110-90-19-4-50x19-heavy-duty-butyl-inner-tubes-2-pack-3mm-thick-tr4-valve","title":"GDHSWJ 110\/90-19 (4.50x19) Heavy-Duty Butyl Inner Tubes — 2-Pack, 3mm Thick TR4 Valve","description":"\u003cp\u003e\u003cstrong\u003eGDHSWJ 110\/90-19 (4.50 x 19) heavy-duty inner tubes are 3mm thick butyl rubber tubes with vulcanized TR4 straight valve stems sold as a 2-piece set for off-road and dirt bikes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese inner tubes are engineered to replace or upgrade the tubes in motorcycles and dirt bikes that use 19-inch rims and tire widths around 110–120 mm. Built from thicker butyl rubber and made with a seamless construction, they prioritize airtight performance, puncture resistance and reliable valve integration so you can spend less time fixing flats and more time riding.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these tubes improve durability on rough trails?\u003c\/h3\u003e\n\u003cp\u003eThe 3mm butyl compound is thicker than typical passenger-bike tubes, which increases resistance to punctures, pinches and abrasion from rocks or roots. Seamless molding reduces weak points where leaks commonly start, and the reinforced valve base prevents splitting under load or during mounting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3mm butyl rubber for higher puncture and abrasion resistance\u003c\/li\u003e\n  \u003cli\u003eSeamless construction minimizes air leaks and stress points\u003c\/li\u003e\n  \u003cli\u003eValve base reinforcement reduces twisting and splitting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my motorcycle and my pump?\u003c\/h3\u003e\n\u003cp\u003eThey are sized for tires with a nominal width around 110 mm (4.50 in) to about 120 mm (4.72 in) and a 19-inch rim, matching common dirt bike and off-road tire specs. Each tube uses a TR4 straight valve stem, which works with most hand and floor pumps and accepts standard valve caps and cores.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with 110\/90-19 tire sizing and similar 4.50 x 19 tires\u003c\/li\u003e\n  \u003cli\u003eTR4 valve stem fits standard pump heads and Schrader-compatible fittings\u003c\/li\u003e\n  \u003cli\u003eSold as two inner tubes — ideal for front and rear replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and maintenance?\u003c\/h3\u003e\n\u003cp\u003eThese tubes are designed for straightforward mounting: the seamless, evenly molded body reduces pinches during installation, and the vulcanized TR4 valve is securely bonded to the tube for consistent alignment. Routine maintenance is the same as any tube: inspect before mounting, use proper tire levers and check pressure regularly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEven molding helps prevent pinched tubes during installation\u003c\/li\u003e\n  \u003cli\u003eVulcanized TR4 valve stem stays seated and aligned\u003c\/li\u003e\n  \u003cli\u003eRegular pressure checks and visual inspections extend tube life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance trade-offs should I expect?\u003c\/h3\u003e\n\u003cp\u003eThicker butyl increases durability but also marginally raises rolling weight compared with thinner tubes, a common trade-off for off-road reliability. These tubes prioritize puncture resistance and longevity for trail and motocross use rather than achieving the lowest possible weight for racing applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigher puncture resistance versus lighter racing-specific tubes\u003c\/li\u003e\n  \u003cli\u003eSlight increase in rotational mass due to 3mm construction\u003c\/li\u003e\n  \u003cli\u003eDesigned for practical, durable performance over ultralight speed gains\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Riders who need reliable, heavier-duty inner tubes for dirt bikes, motocross machines or off-road motorcycles with 19-inch rims. If you want a stronger tube that resists punctures and valve-base splitting and accepts standard pumps, the GDHSWJ 110\/90-19 3mm butyl tubes (2-pack) are a practical, cost-effective choice for regular trail use and weekend racing.\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 4.50 x 19 tires?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They are sized for 110\/90-19 (4.50 x 19) tires and will also suit similar 19-inch tires around 110–120 mm width.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What valve type do they use and is it pump-compatible?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They use a TR4 straight valve stem, vulcanized into the tube, and are compatible with most standard hand and floor pumps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GDHSWJ","offers":[{"title":"Default Title","offer_id":67591428571321,"sku":"B0CB3FY2R8","price":76.51,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/gdhswj-front-packaging-110-90-19.jpg?v=1790550783","url":"https:\/\/redleafauto.ca\/products\/gdhswj-110-90-19-4-50x19-heavy-duty-butyl-inner-tubes-2-pack-3mm-thick-tr4-valve","provider":"Redleaf Auto","version":"1.0","type":"link"}