{"product_id":"bridgestone-ultra-heavy-duty-inner-tube","title":"Bridgestone Ultra Heavy-Duty Inner Tube TR-4 Valve","description":"\u003cp\u003eThe Bridgestone Ultra Heavy-Duty Inner Tube is the thickest tube in Bridgestone's line, for e-motos that run tube type off-road tires and want pinch flat protection. It comes in five sizes for 18, 19 and 21 inch wheels, each fitting front or rear, and every variant is a single tube.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUniversal 18, 19 and 21 Inch Inner Tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e Choose the tube by the tire size on your sidewall\u003c\/p\u003e\n\u003cp\u003eThe sizes are 100\/100-18, 110\/100-18, 100\/90-19, 110\/90-19 and 80\/100-21, which covers the common rear and front sizes on a full size e-moto. The valve on every size is a TR-4 round base center metal valve with threaded nuts.\u003c\/p\u003e\n\u003cp\u003eBridgestone's tire manual sets the rule for when to use one: fit a new tube every time a new tire goes on a rim that needs a tube, because an old tube may be stretched and the crease it forms could make it fail. Check the size markings on the tube so your tire size appears on it before it goes in.\u003c\/p\u003e\n\u003cp\u003eThe extra rubber shows in the weight. The 18 inch tubes weigh 3.56 lb and 3.39 lb, both 19 inch tubes weigh 3.5 lb, and the 80\/100-21 weighs 3.25 lb.\u003c\/p\u003e","brand":"Bridgestone","offers":[{"title":"100\/100-18","offer_id":67983908110565,"sku":"549681","price":56.23,"currency_code":"USD","in_stock":true},{"title":"110\/100-18","offer_id":67983908143333,"sku":"549703","price":64.87,"currency_code":"USD","in_stock":true},{"title":"100\/90-19","offer_id":67983908176101,"sku":"549711","price":56.23,"currency_code":"USD","in_stock":true},{"title":"110\/90-19","offer_id":67983908208869,"sku":"549738","price":61.96,"currency_code":"USD","in_stock":true},{"title":"80\/100-21","offer_id":67983908241637,"sku":"549673","price":57.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0511\/3964\/1496\/files\/bridgestone-ultra-heavy-duty-inner-tube-1.png?v=1793731637","url":"https:\/\/gritshift.com\/fr\/products\/bridgestone-ultra-heavy-duty-inner-tube","provider":"GritShift","version":"1.0","type":"link"}