{"product_id":"zlgoues-21-dirt-bike-inner-tube-3-0mm-thick-tr4-valve-for-2-75-3-00-80-90-21-90-100-21-off-road-durable","title":"ZLGouES 21\" Dirt Bike Inner Tube 3.0mm Thick TR4 Valve for 2.75–3.00\" (80\/90–21, 90\/100–21) Off‑Road Durable","description":"\u003cp\u003e\u003cstrong\u003eZLGouES heavy-duty 3.0mm inner tube for 21\" dirt bike tires provides reinforced puncture resistance and a TR4 valve for reliable inflation on 2.75–3.00\" (80\/90–21 to 90\/100–21) wheels.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you're replacing a worn tube before a long trail ride or stocking spares for weekend adventures, this ZLGouES tube is built to handle off-road conditions and larger dual-sport wheels. Constructed from thick natural rubber and fitted with a threaded TR4 valve stem, it supports a wide range of models — from KLR and KTM to Honda, Yamaha and Harley applications — while prioritizing durability and safe inflation.\u003c\/p\u003e\n\n\u003ch3\u003eWill this tube fit my tire and bike?\u003c\/h3\u003e\n\u003cp\u003eYes — the tube is engineered for 21-inch wheels with tire widths from 2.75\" to 3.00\". It’s cross-compatible with common 21\" sizes such as 80\/90-21, 90\/90-21, 90\/100-21, 80\/100-21 and equivalent 2.75-21 or 3.00-21 markings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with many models: Honda, Suzuki, Kawasaki, Yamaha, KTM, Harley and more.\u003c\/li\u003e\n  \u003cli\u003eAccepts tires labeled 2.75\/3.00-21, 80\/90-21, 90\/100-21 and similar.\u003c\/li\u003e\n  \u003cli\u003eDesigned for any motorcycle using a 21\" rim where tire width is 2.75\"–3.00\".\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the tube for off-road use?\u003c\/h3\u003e\n\u003cp\u003eThe tube uses 3.0mm-thick natural rubber to increase resistance to punctures, pinch flats and abrasion commonly encountered off-road. Its heavier wall absorbs impacts and helps the tube survive rougher terrain than standard thin tubes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3.0mm thickness for added puncture and pinch resistance.\u003c\/li\u003e\n  \u003cli\u003eNatural rubber composition balances flexibility and toughness.\u003c\/li\u003e\n  \u003cli\u003eEngineered to better withstand shocks, bumps and hollows on trails.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat about the valve — will it make inflation easier and safer?\u003c\/h3\u003e\n\u003cp\u003eThe tube includes a TR4 valve stem: short, straight and threaded for secure attachment to caps and pumps. The valve base is molded to reduce twisting, pinching or pulling that can lead to leaks or sudden failure during inflation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTR4 valve is threaded for pump and cap compatibility.\u003c\/li\u003e\n  \u003cli\u003eMolded valve base prevents twisting and pinching of the rubber.\u003c\/li\u003e\n  \u003cli\u003eDesigned to reduce risk of sudden ruptures at the valve area.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use and maintain this tube for longest life?\u003c\/h3\u003e\n\u003cp\u003eInstall the tube with proper tire beads, correct rim tape and the recommended pressure for your tire and load. Inspect before mounting for debris, check rim condition and keep the valve capped to prevent dirt ingress and damage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSeat tire beads fully and avoid pinching the tube during installation.\u003c\/li\u003e\n  \u003cli\u003eUse rim tape and keep recommended tire pressure for your riding type.\u003c\/li\u003e\n  \u003cli\u003eStore spares in a cool, dry place away from direct sunlight and oils.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This ZLGouES 3.0mm 21\" inner tube suits dual-sport and dirt riders who need tougher tubes for trail, enduro or adventure use. It's a practical replacement or spare for owners of KLR 650, XR\/CRF series, DR\/DRZ and many KTM, Yamaha and Harley models with 21\" tires between 2.75\" and 3.00\". Choose this tube if you want a simple, heavier-duty option to reduce roadside flats and improve peace of mind on rough rides.\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: Will this tube fit my 80\/90-21 tire?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It fits 80\/90-21 and other 21\" sizes between 2.75\" and 3.00\" such as 90\/100-21 and 90\/90-21.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the TR4 valve compatible with standard pumps?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The threaded TR4 valve is compatible with most pump heads and comes molded to resist twisting and leaks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ZLGouES","offers":[{"title":"Default Title","offer_id":48084400734366,"sku":"B0D62DHQGR","price":34.01,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/zlgoues-front-view-packaged-tube.jpg?v=1785853914","url":"https:\/\/northtrailauto.ca\/products\/zlgoues-21-dirt-bike-inner-tube-3-0mm-thick-tr4-valve-for-2-75-3-00-80-90-21-90-100-21-off-road-durable","provider":"North Trail Auto","version":"1.0","type":"link"}