{"product_id":"qituex-700c-tpu-inner-tubes-2-pack-for-32-47c-gravel-45mm-metal-presta-repair-kit","title":"QITUEX 700C TPU Inner Tubes — 2-Pack for 32-47C Gravel, 45mm Metal Presta \u0026 Repair Kit","description":"\u003cp\u003e\u003cstrong\u003eQITUEX 2 Pack Ridenow TPU inner tubes are lightweight, puncture-resistant 700C tubes for 32–47C gravel tires, fitted with 45mm metal Presta valves and a detachable brass core, and include a repair patch kit.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese high-performance inner tubes use thermoplastic polyurethane (TPU) to deliver a balance of low weight and strong durability suited to gravel, cyclocross, and road setups. Each tube weighs roughly 45g and installs like a standard tube while offering better tear resistance, wider temperature tolerance, and improved air retention compared with many butyl alternatives. The metal Presta valve and removable brass core make inflation, tubeless adapter use, and valve maintenance straightforward for riders who demand reliability on varied terrain.\u003c\/p\u003e\n\n\u003ch3\u003eHow does TPU help when riding gravel and mixed surfaces?\u003c\/h3\u003e\n\u003cp\u003eTPU material combines elasticity with puncture resistance, resisting cuts and abrasions encountered on gravel roads and trails. It also remains stable over a broad temperature range so pressure changes are less dramatic during prolonged rides or seasonal transitions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh tear and abrasion resistance for rough roads\u003c\/li\u003e\n  \u003cli\u003eThin, lightweight construction saves rotational mass\u003c\/li\u003e\n  \u003cli\u003eGood temperature stability for consistent pressure\u003c\/li\u003e\n  \u003cli\u003eImproved air retention compared to many lightweight butyl tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat do the metal Presta valve and detachable brass core offer?\u003c\/h3\u003e\n\u003cp\u003eThe high-strength aluminum valve body and removable brass core simplify pump attachment, CO2 inflation, and conversion for valve extenders. Metal construction adds corrosion resistance and a tighter seal versus basic plastic valves, reducing leak risk during long rides.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e45mm valve length fits most rims without extension\u003c\/li\u003e\n  \u003cli\u003eRemovable core for CO2 cartridges and easier maintenance\u003c\/li\u003e\n  \u003cli\u003eAluminum valve body for durability and airtightness\u003c\/li\u003e\n  \u003cli\u003eCompatible with threaded valve extenders and tubeless adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and inflate these TPU tubes safely?\u003c\/h3\u003e\n\u003cp\u003eStart with a partial inflation (about 0.5 PSI) to settle the tube inside the tire, then fit the tire bead and rim without pinching. Do a short bare-test inflation not exceeding 5 PSI (0.35 bar) when the tube is outside the tire, and always verify the tube isn’t pinched before fully inflating to riding pressure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInitial fill: 0.5 PSI to shape the tube inside the tire\u003c\/li\u003e\n  \u003cli\u003eOutside-the-tire test: do not exceed 5 PSI (0.35 bar)\u003c\/li\u003e\n  \u003cli\u003eCheck rim and tire bead for debris before final inflation\u003c\/li\u003e\n  \u003cli\u003eReplaceable core allows easy top-ups or CO2 use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat sizes and compatibility should I expect with this 2-pack?\u003c\/h3\u003e\n\u003cp\u003eEach pack contains two tubes sized for 700C wheels and nominal tire widths from 32C to 47C, accommodating many gravel, hybrid, and touring tire options. Valve lengths include a 45mm standard; 65mm lengths are also available for deeper-section rims, ensuring broad compatibility with modern wheelsets.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 700C tires from 32C to 47C\u003c\/li\u003e\n  \u003cli\u003e45mm valve length standard; longer valves available separately\u003c\/li\u003e\n  \u003cli\u003eCompatible with rims that accept Presta valves and valve extenders\u003c\/li\u003e\n  \u003cli\u003eIncludes a repair patch kit for roadside fixes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Riders who want a lightweight, durable inner tube for gravel, commuting, or fast road rides where reducing weight matters but reliability cannot be sacrificed. The QITUEX Ridenow TPU tubes suit cyclists upgrading from heavy butyl tubes, racers seeking lower rotational mass, and touring riders who appreciate the replaceable valve core and included patch kit for on-the-go repairs. If you use deep rims, look for the longer 65mm valve option to ensure a proper fit.\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 tubes compatible with tubeless rims?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the removable valve core and metal Presta stem work with many tubeless adapters and valve extenders, but confirm rim specs before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What's the recommended inflation procedure?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Partially inflate to 0.5 PSI to seat the tube, test outside tire under 5 PSI, then install and pump to riding pressure while avoiding pinches.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"QITUEX","offers":[{"title":"Default Title","offer_id":48086489497758,"sku":"B0FBL8M27S","price":45.47,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/qituex-front-packaging_49634704-a0f9-4b42-85c8-a8cf6927e593.jpg?v=1785899336","url":"https:\/\/northtrailauto.ca\/products\/qituex-700c-tpu-inner-tubes-2-pack-for-32-47c-gravel-45mm-metal-presta-repair-kit","provider":"North Trail Auto","version":"1.0","type":"link"}