{"product_id":"tusk-ultra-heavy-duty-4mm-motorcycle-tube-90-100x21-with-tr-4-valve","title":"Tusk Ultra Heavy Duty 4mm Motorcycle Tube – 90\/100x21 with TR-4 Valve","description":"\u003ch2\u003eRugged construction for the roughest trails\u003c\/h2\u003e\n\u003cp\u003eThe Tusk Ultra Heavy Duty 4mm Motorcycle Tube is built for riders who push through rocky terrain and long days on the bike. Its 4mm-thick inner wall provides extra stiffness and puncture resistance, helping the tire maintain shape under load and during jarring impacts.\u003c\/p\u003e\n\u003ch3\u003ePremium materials and enduring performance\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-quality butyl rubber, this tube balances elasticity with durability. The thicker wall helps it resist wear from abrasive surfaces while preserving a reliable seal, so you can ride with confidence on varied surfaces.\u003c\/p\u003e\n\u003ch3\u003eSmart valve for reliable inflation\u003c\/h3\u003e\n\u003cp\u003eThe TR-4 valve stem is designed for easy inflation and compatibility with common pumps. Sized for 90\/100x21 tires, it helps ensure a secure seal and consistent pressure, even after a rough segment or heat buildup on the trail.\u003c\/p\u003e\n\u003ch3\u003eReal-world riding scenarios\u003c\/h3\u003e\n\u003cp\u003ePicture off-road climbs, dusty switchbacks, and muddy stretches where flats are common. The extra thickness can help the tube hold pressure more steadily, contributing to a steady ride feel when it matters most.\u003c\/p\u003e\n\u003ch3\u003eWhat you get and how to use it\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e4mm thick inner tube designed for rough terrain\u003c\/li\u003e\n  \u003cli\u003eHigh-quality rubber for durability and resilience\u003c\/li\u003e\n  \u003cli\u003eTR-4 valve stem for reliable inflation and sealing\u003c\/li\u003e\n  \u003cli\u003eCompatible with 90\/100x21 tires\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTip: Match the tube to the correct tire size and inspect the seal and pressure regularly to maximize life and performance on the trail.\u003c\/p\u003e\n\u003ch3\u003eWhy riders choose this tube\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThick walls offer puncture resistance on rocky paths\u003c\/li\u003e\n  \u003cli\u003eDurable material stands up to sun, mud, and abrasion\u003c\/li\u003e\n  \u003cli\u003eValve design supports quick, easy top-ups\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 tire sizes does the Tusk Ultra Heavy Duty 4mm Tube fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for 90\/100x21 tires, it fits a common off-road size for many dirt bikes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the TR-4 valve stem and why does it matter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: TR-4 provides a reliable seal and easy inflation with standard pumps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TUSK","offers":[{"title":"Default Title","offer_id":42469976342613,"sku":"B0CSPN1YFX","price":58.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/tusk-ultra-heavy-duty-4mm-tube-90-100x21-side-view.jpg?v=1778116285","url":"https:\/\/plentytorque.co.uk\/products\/tusk-ultra-heavy-duty-4mm-motorcycle-tube-90-100x21-with-tr-4-valve","provider":"PlentyTorque","version":"1.0","type":"link"}