{"product_id":"presta-valve-core-stem-brass-tubeless-road-mtb-bike","title":"Presta Valve Core Stem – Brass Tubeless Road \u0026 MTB Bike 2\/6\/12pc","description":"\n\u003ch2\u003eKeep Your Ride Rolling – Presta Valve Cores for Tubeless \u0026amp; Road Bikes\u003c\/h2\u003e\n\u003cp\u003eWhether you're conquering mountain trails or pounding city roads, a reliable valve core is the unsung hero of every smooth ride. These \u003cstrong\u003eCNC-machined brass Presta valve cores\u003c\/strong\u003e are precision-crafted as direct service replacements for any Presta-style tubeless valve with a removable core. Available in convenient packs of 2, 6, or 12 so you're always prepared — on the trail, at the track, or in the workshop.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhy Cyclists Love These Valve Cores\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Brass Construction\u003c\/strong\u003e – Durable, corrosion-resistant brass body with chrome-plated (silver) finish for long-lasting reliability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCNC Precision Machined\u003c\/strong\u003e – Tight tolerances ensure a perfect, airtight seal every time, preventing slow leaks and pressure loss.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrid-Textured Head Casing\u003c\/strong\u003e – Knurled grip for stable, no-slip performance during installation and removal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Presta Fit\u003c\/strong\u003e – Compatible with tubeless road bike and MTB (mountain bike) rims that use removable-core Presta valves.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional Tool Included\u003c\/strong\u003e – Comes with an optional valve core tool for quick, easy service operation — no fumbling in the field.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight\u003c\/strong\u003e – Approx. 1.54 grams per piece; you'll never notice the weight difference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainly Brass \u0026amp; Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChrome-Plated (Silver)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePresta (French) – Removable Core\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 26 × 4.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 1.54 g \/ piece\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 pc \/ 6 pc \/ 12 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTubeless Road Bike \u0026amp; MTB (Presta removable core valves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2, 6, or 12 × Presta Valve Core(s)\u003c\/li\u003e\n  \u003cli\u003eOptional valve core removal\/installation tool\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-3m-spiral-cable-protector-xiaomi-m365-ninebot-electric-scooter\"\u003e1.3m Spiral Cable Protector for Xiaomi M365 \u0026amp; Ninebot Scooter\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/dn15-half-inch-adjustable-garden-sprinkler-head-lawn-irrigation\"\u003e1\/2\" DN15 Adjustable Garden Sprinkler Head | Lawn Irrigation\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExternal Resource\u003c\/h3\u003e\n\u003cp\u003eFor tips on safe cycling equipment and maintenance, visit the U.S. Consumer Product Safety Commission – Bicycle Safety page.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Inner_tube\" target=\"_blank\" rel=\"noopener\"\u003eInner tube\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a Presta valve core and do I need a replacement?\u003c\/h4\u003e\n\u003cp\u003eA: A Presta valve core is the internal sealing mechanism inside a Presta (French) bicycle valve. Over time, valve cores can wear out, get damaged, or develop slow leaks. If your tubeless road bike or MTB tyre is losing pressure even with a properly seated bead, a fresh brass Presta valve core replacement is often the quickest and cheapest fix.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these valve cores compatible with my tubeless bike tyre setup?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — these brass Presta valve cores are designed to fit any tubeless road bike or MTB valve that features a removable core (standard Presta\/French style). Simply use the included valve core tool to unscrew the old core and thread in the new one. Always check that your valve stem accepts a removable core before purchasing.\u003c\/p\u003e\n\u003ch4\u003eQ: Why buy a multi-pack of Presta valve cores?\u003c\/h4\u003e\n\u003cp\u003eA: Having spare Presta valve cores on hand means you're never caught off guard by a sudden air leak during a ride or race. The 6-pack and 12-pack options are ideal for cyclists who maintain multiple bikes, mechanics, or cycling clubs who want to keep workshop stock at the ready.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I install or remove a Presta valve core?\u003c\/h4\u003e\n\u003cp\u003eA: Use the included valve core tool (or a dedicated Presta valve core remover). Deflate the tyre fully, insert the tool into the valve head, turn counter-clockwise to remove the old core, thread in the new brass core clockwise until snug, then re-inflate. Avoid overtightening to prevent thread damage.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a Presta valve core and do I need a replacement?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A Presta valve core is the internal sealing mechanism inside a Presta (French) bicycle valve. Over time, valve cores can wear out, get damaged, or develop slow leaks. If your tubeless road bike or MTB tyre is losing pressure even with a properly seated bead, a fresh brass Presta valve core replacement is often the quickest and cheapest fix.\"}}, {\"@type\": \"Question\", \"name\": \"Are these valve cores compatible with my tubeless bike tyre setup?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — these brass Presta valve cores are designed to fit any tubeless road bike or MTB valve that features a removable core (standard Presta\/French style). Simply use the included valve core tool to unscrew the old core and thread in the new one. Always check that your valve stem accepts a removable core before purchasing.\"}}, {\"@type\": \"Question\", \"name\": \"Why buy a multi-pack of Presta valve cores?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Having spare Presta valve cores on hand means you're never caught off guard by a sudden air leak during a ride or race. The 6-pack and 12-pack options are ideal for cyclists who maintain multiple bikes, mechanics, or cycling clubs who want to keep workshop stock at the ready.\"}}, {\"@type\": \"Question\", \"name\": \"How do I install or remove a Presta valve core?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use the included valve core tool (or a dedicated Presta valve core remover). Deflate the tyre fully, insert the tool into the valve head, turn counter-clockwise to remove the old core, thread in the new brass core clockwise until snug, then re-inflate. Avoid overtightening to prevent thread damage.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"B","offer_id":47720791343209,"sku":"14:200002130#B","price":9.46,"currency_code":"USD","in_stock":true},{"title":"C","offer_id":47720791375977,"sku":"14:4#C","price":9.46,"currency_code":"USD","in_stock":true},{"title":"A","offer_id":47720791408745,"sku":"14:200001438#A","price":9.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Se177e3b76ccd491ebeeb3ac24b575deai.webp?v=1782318086","url":"https:\/\/oasis-select.com\/products\/presta-valve-core-stem-brass-tubeless-road-mtb-bike","provider":"Oasis Select","version":"1.0","type":"link"}