{"product_id":"ar-pro-motorcycle-inner-tubes-100-90-19-4-10-x-19-2-pack-tr4-valve-1-6mm-natural-rubber-pinch-resistant","title":"AR-PRO Motorcycle Inner Tubes 100\/90-19 (4.10 x 19) 2-Pack — TR4 Valve, 1.6mm Natural Rubber, Pinch-Resistant","description":"\u003cp\u003e\u003cstrong\u003eThese AR-PRO inner tubes are a 2-pack of 100\/90-19 (4.10 x 19) natural rubber tubes with TR4 valve stems, built for off-road and motocross use and engineered to resist pinches and punctures.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eSwap in a reliable pair of inner tubes that balance flexibility and toughness. Each pack includes two 1.6mm natural rubber tubes sized for 100\/90-19 tires (often labeled 4.10 x 19), featuring vulcanized TR4 valve stems and a molded construction that minimizes pinch flats and valve failures. They’re designed to work with dirt bike and off-road tire profiles while staying pliable over a wide range of temperatures.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these tubes help on rough trails?\u003c\/h3\u003e\n\u003cp\u003eThe tubes use natural rubber at a standard 1.6mm thickness, which combines elasticity with abrasion resistance to survive rocks, roots, and rough terrain better than thin alternatives. Their uniform molding reduces weak spots where pinches and sudden splits often start.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1.6mm natural rubber resists abrasion and permanent distortion\u003c\/li\u003e\n  \u003cli\u003eMolded construction reduces pinch-flat risk\u003c\/li\u003e\n  \u003cli\u003eValve area reinforced to prevent tearing at the stem\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my motorcycle tire and pump?\u003c\/h3\u003e\n\u003cp\u003eThese tubes are specified for 100\/90-19 tires (also listed as 4.10 x 19) and are intended for 19\" rims. They come with TR4 valve stems—the common short, straight, threaded valve type—so they work with most hand and floor pumps and standard rim valve holes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with 100\/90-19 (4.10 x 19) tire sizes\u003c\/li\u003e\n  \u003cli\u003eTR4 threaded valve fits most pumps and caps\u003c\/li\u003e\n  \u003cli\u003eDesigned for standard 19\" rim openings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes these tubes durable and low-maintenance?\u003c\/h3\u003e\n\u003cp\u003eNatural rubber offers good flexibility and resistance to permanent deformation, which helps tubes maintain shape under repeated impacts. The TR4 valve stems are vulcanized into the rubber for a secure seal that minimizes twisting, leakage, and premature valve-base splitting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVulcanized valve seating prevents leaks and pull-out\u003c\/li\u003e\n  \u003cli\u003eEven wall thickness reduces stress concentration\u003c\/li\u003e\n  \u003cli\u003eResistance to twisting and splitting around the valve base\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and routine care?\u003c\/h3\u003e\n\u003cp\u003eInstalling these tubes follows standard inner-tube replacement procedures: lightly inflate to shape, insert into the tire, then mount and fully inflate to recommended pressure. Regular visual checks and keeping proper tire pressure will extend tube life and reduce the chance of damage on the trail.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-inflate slightly to avoid pinching during installation\u003c\/li\u003e\n  \u003cli\u003eUse recommended tire pressure for your bike and riding conditions\u003c\/li\u003e\n  \u003cli\u003eInspect for foreign objects after a flat to prevent repeat damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Riders of dirt bikes, enduro machines, and off-road motorcycles who need a cost-effective, dependable replacement inner tube will find this AR-PRO 2-pack ideal. It suits weekend trail riders, amateur racers, and anyone who prefers natural rubber’s flexibility and abrasion resistance for 19\" rim setups. If you require a plug-and-play tube built to withstand rough surfaces while staying compatible with common pumps and rims, this pair is a practical spare or replacement option.\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: Are these inner tubes compatible with 19-inch dirt bike rims?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. These AR-PRO tubes are sized 100\/90-19 (4.10 x 19) and fit standard 19\" rims.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What valve type do the tubes use and will my pump work?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They use TR4 threaded valve stems, compatible with most hand and floor pumps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AR-PRO","offers":[{"title":"Default Title","offer_id":67592563392697,"sku":"B09TT2ZD3P","price":69.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/ar-pro-front-packaging-100-90-19-tubes.jpg?v=1790565581","url":"https:\/\/redleafauto.ca\/products\/ar-pro-motorcycle-inner-tubes-100-90-19-4-10-x-19-2-pack-tr4-valve-1-6mm-natural-rubber-pinch-resistant","provider":"Redleaf Auto","version":"1.0","type":"link"}