{"product_id":"irc-components-heavy-duty-inner-tube-70-100-19-3mm-thick-tr-4-metal-valve","title":"IRC Components Heavy Duty Inner Tube 70\/100-19 — 3mm Thick, TR-4 Metal Valve","description":"\u003cb\u003eIRC Heavy Duty Tube 70\/100-19 is a 3 mm thick motorcycle inner tube made from a natural-and-butyl rubber blend with a TR-4 straight metal valve for rugged off-road and sport riding.\u003c\/b\u003e\n\n\u003cp\u003eThis inner tube is engineered to withstand demanding conditions and heavy use. Built from a blend of natural and butyl rubber, the IRC Heavy Duty Tube balances elasticity and air retention while adding a tougher, puncture-resistant construction. It meets or surpasses original equipment benchmarks and is suited for a range of small-displacement motocross and trail bikes.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes this tube tougher than a standard inner tube?\u003c\/h3\u003e\n\u003cp\u003eThe IRC tube uses a thicker 3 mm wall and a rubber compound mix that improves tear resistance and reduces puncture frequency. That design increases tolerance to rocks, roots, and aggressive riding without sacrificing inflation stability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3 mm wall thickness for increased durability\u003c\/li\u003e\n  \u003cli\u003eNatural + butyl rubber blend for resilience and sealing\u003c\/li\u003e\n  \u003cli\u003ePuncture-resistant formulation suitable for off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich bikes and tires is the 70\/100-19 tube compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis size is intended for 70\/100-19 tires and fits a number of small-displacement motocross and trail models. Check fitment with your bike’s manual, but common factory compatibilities include recent GAS GAS and older Honda models listed by IRC.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 70\/100-19 tires (standard motocross\/trail sizing)\u003c\/li\u003e\n  \u003cli\u003eCompatible with GAS GAS MC85 (model years 2021–2024)\u003c\/li\u003e\n  \u003cli\u003eCompatible with Honda CR80RB (1996–2002), CR85RB (2003–2007), CRF100F (2004–2013)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the valve configured and what does that mean for installation?\u003c\/h3\u003e\n\u003cp\u003eThis tube uses a TR-4 straight metal valve stem with an 8 mm diameter, the common size for many off-road wheels. The rigid metal stem aids straightforward inflation, is easy to access through valve holes, and resists bending when using compressors or hand pumps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTR-4 straight metal valve, 8 mm diameter\u003c\/li\u003e\n  \u003cli\u003eSturdy stem simplifies high-pressure inflations and frequent servicing\u003c\/li\u003e\n  \u003cli\u003eStandard valve threading fits typical caps and valve tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Riders who push small-displacement motocross, trail, and enduro bikes and need a dependable replacement tube will benefit most. If you value long service life, fewer flats on rough trails, and OEM-level quality from a Japanese manufacturer, the IRC Heavy Duty Tube 70\/100-19 is designed to give you extra protection without adding complex installation steps. Ideal for mechanics, race teams, and weekend trail riders wanting a robust spare for front or rear 19\" wheels.\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 IRC 70\/100-19 tube compatible with my GAS GAS MC85?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the IRC 70\/100-19 tube is listed as compatible with GAS GAS MC85 models from 2021 to 2024.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this tube on Honda CR85RB models?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — this IRC tube fits Honda CR85RB bikes from 2003 to 2007 when paired with a 70\/100-19 tire.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"IRC Components","offers":[{"title":"Default Title","offer_id":67591446495417,"sku":"B006GWJI7W","price":74.51,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/irc-heavy-duty-tube-front-view.jpg?v=1790551370","url":"https:\/\/redleafauto.ca\/products\/irc-components-heavy-duty-inner-tube-70-100-19-3mm-thick-tr-4-metal-valve","provider":"Redleaf Auto","version":"1.0","type":"link"}