{"product_id":"irc-components-motorcycle-inner-tube-170-80-15-pv-78-15in-rim-natural-butyl-blend-for-reliable-air-retention","title":"IRC Components motorcycle inner tube 170\/80-15 PV-78 — 15in rim, natural-butyl blend for reliable air retention","description":"\u003cp\u003e\u003cstrong\u003eIRC Motorcycle TUBE 170\/80-15 PV-78 is a replacement inner tube engineered in Japan to meet or exceed OEM standards for fit, durability, and air retention.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis 170\/80-15 PV-78 inner tube from IRC Components combines natural and butyl rubber for a balance of elasticity and puncture resistance, designed for compatibility with many 15-inch motorcycle rims and tires. Built to Japanese manufacturing tolerances, the tube delivers consistent inflation, predictable pressure behavior, and reliable sealing around the valve stem. It’s a straightforward, high-quality spare or service part when you want a dependable inner tube that matches original equipment performance.\u003c\/p\u003e\n\n\u003ch3\u003eWhich bikes and rims will the 170\/80-15 PV-78 tube fit?\u003c\/h3\u003e\n\u003cp\u003eThe tube size 170\/80-15 indicates it fits tires with a 170 mm width and an aspect ratio of 80 on a 15-inch rim. This makes it suitable for motorcycles and scooters that specify that nominal tire dimension and require a PV-78 valve specification. Always check your tire sidewall or owner's manual for the recommended inner tube size before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 15-inch rims with 170\/80 tire sizing\u003c\/li\u003e\n  \u003cli\u003eCompatible where a PV-78 valve is specified\u003c\/li\u003e\n  \u003cli\u003eSuited to many Japanese and international motorcycle models using tube-type tires\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the IRC tube balance elasticity and puncture resistance?\u003c\/h3\u003e\n\u003cp\u003eIRC formulates this tube from a blend of natural rubber and butyl rubber to combine the stretch and sealing advantages of natural rubber with the air retention and chemical resistance of butyl. The resulting material provides good conformity inside the tire and reduced permeability compared with pure natural rubber tubes, helping maintain pressure over longer service intervals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNatural rubber adds flexibility for easier mounting and better tire seating\u003c\/li\u003e\n  \u003cli\u003eButyl improves airtightness and resistance to gradual leaks\u003c\/li\u003e\n  \u003cli\u003eManufactured to Japanese quality controls for consistent wall thickness and strength\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect when installing or maintaining this inner tube?\u003c\/h3\u003e\n\u003cp\u003eInstallation follows standard inner tube procedures: partially inflate to remove folds, position inside the tire, seat both bead edges on the rim, then fully inflate to the recommended psi. Use proper tire levers and avoid sharp tools; inspect the tire interior and rim strip for debris to prevent punctures. Check valve orientation and torque (if applicable) when fitting a valve nut.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-inflate slightly to reduce pinching during installation\u003c\/li\u003e\n  \u003cli\u003eInspect tire and rim for sharp objects or burrs before mounting\u003c\/li\u003e\n  \u003cli\u003eFollow the motorcycle maker’s recommended tire pressure after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long can I expect this tube to last, and how should I store spares?\u003c\/h3\u003e\n\u003cp\u003eService life depends on riding conditions, maintenance, and exposure to heat, ozone, and sunlight. Properly installed and maintained, a quality tube like the IRC PV-78 will serve for many riding seasons, but it should be replaced if it develops leaks, visible cracks, or thinning. Store unused tubes in a cool, dry place away from direct sunlight and ozone sources (e.g., electric motors) to preserve rubber elasticity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStore spares in cool, dark, dry conditions away from chemicals\u003c\/li\u003e\n  \u003cli\u003ePeriodic pressure checks help spot slow leaks early\u003c\/li\u003e\n  \u003cli\u003eReplace if rubber shows cracking, hardening, or permanent deformation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Riders, mechanics, and parts suppliers looking for a reliable, OEM-quality replacement inner tube for 15-inch motorcycle tires will find the IRC 170\/80-15 PV-78 a practical choice. It’s aimed at anyone who needs a dependable spare for road use, routine service work, or fleet maintenance where consistent performance and Japanese-built quality are priorities.\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: Is the 170\/80-15 PV-78 compatible with tubeless tires?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This IRC item is an inner tube for tube-type tires and cannot be used in tires designed specifically as tubeless.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What valve type does the PV-78 use and can I swap it?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: PV-78 denotes the valve specification. Valve swaps are possible but require correct valve stem size and professional fitting to ensure a proper seal.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"IRC Components","offers":[{"title":"Default Title","offer_id":48086094315678,"sku":"B00JDPQOFS","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/irc-tube-170-80-15-front-view.jpg?v=1785884384","url":"https:\/\/northtrailauto.ca\/products\/irc-components-motorcycle-inner-tube-170-80-15-pv-78-15in-rim-natural-butyl-blend-for-reliable-air-retention","provider":"North Trail Auto","version":"1.0","type":"link"}