{"product_id":"core-heavy-duty-tube-26-x-3-5-4-5-sv","title":"Core Heavy Duty Tube - 26 x 3.5 - 4.5” SV","description":"\u003cp\u003eBuilt for wide-tire performance and demanding riding conditions, this 26 x 4.0 bicycle inner tube is made from premium butyl rubber to deliver excellent air retention and long-term durability. Its reinforced rubber compound enhances puncture resistance, helping reduce flats caused by thorns and trail debris.Ideal for fat bikes and e-bikes where strength, reliability, and confidence matter most. Specifications Size: 26 x 4.0 Weight: 0.55kg (1.21lbs) Wall Thickness: 1.5-2mm Valve Type: AV (Schrader) – 35mm Material: 100% Premium Butyl Rubber Tensile Strength: 7 MPa Color: Black Key Feature: Thorn-resistant construction for improved puncture protection\u003c\/p\u003e","brand":"Core","offers":[{"title":"Default Title","offer_id":50614097445111,"sku":"CR-TU-BU-02","price":19.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/3247\/6407\/files\/1208500.jpg?v=1774142399","url":"https:\/\/primebicyclegear.com\/products\/core-heavy-duty-tube-26-x-3-5-4-5-sv","provider":"Prime Bicycle Gear","version":"1.0","type":"link"}