{"product_id":"parts-unlimited-standard-inner-tube-21-2-75-3-0","title":"Parts Unlimited Standard Inner Tube 21\" 2.75 - 3.0","description":"\u003cp\u003eThe Parts Unlimited Standard Inner Tube is a 21-inch tube made from 100% butyl polymer for dependable air retention. It accommodates several common 21-inch tire sizes and uses a TR-4 center metal valve stem for a straightforward replacement setup. Its standard-duty construction makes it a practical choice for routine tire replacement across compatible powersports and e-moto wheels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUniversal (2.75 - 3.0 Standard-duty Inner Tube for 21\" rims)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUnlike tubes that blend butyl with natural rubber, Parts Unlimited manufactures this tube from 100% butyl polymer, designed to minimize natural air leakage and maintain tire pressure for longer periods. This tube fits a range of popular 21-inch tire sizes and features a TR-4 round-base, center metal valve with threaded nuts. Each tube is individually boxed with sizing and valve information marked on the package for easier identification when servicing or stocking replacement tubes.\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":52165413601509,"sku":"0350-0350","price":13.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0511\/3964\/1496\/files\/30CE6FDE-82E2-46E8-A620-5DBDC5F48849_a5361a64-02cc-4c8c-8f49-f62837b20ecc.jpg?v=1787723472","url":"https:\/\/gritshift.com\/fr\/products\/parts-unlimited-standard-inner-tube-21-2-75-3-0","provider":"GritShift","version":"1.0","type":"link"}