{"product_id":"sunlight-inner-tube-20-1-1-8-451-28-32-mm-schrader-valve","title":"Sunlight Inner Tube – 20 × 1-1\/8 (451 × 28) | 32 mm Schrader Valve","description":"\u003cp data-start=\"107\" data-end=\"295\"\u003eThis Sunlight inner tube is designed for 20-inch wheels using the ISO 451 standard and a Schrader valve, providing a correct replacement for narrow, high-pressure small-wheel applications.\u003c\/p\u003e\n\u003cp data-start=\"297\" data-end=\"561\"\u003eBuilt to fit ISO 451 rims, this tube is commonly used on folding bikes, recumbents, and select performance-oriented small-wheel bikes where precise sizing is critical. The straight Schrader valve allows easy inflation with standard floor pumps and air compressors.\u003c\/p\u003e\n\u003cp data-start=\"563\" data-end=\"850\"\u003eKey Features\u003cbr data-start=\"575\" data-end=\"578\"\u003e• Designed specifically for ISO 451 (20-inch) wheels\u003cbr data-start=\"630\" data-end=\"633\"\u003e• Suitable for narrow, high-pressure tire applications\u003cbr data-start=\"687\" data-end=\"690\"\u003e• Schrader valve compatible with standard pumps and compressors\u003cbr data-start=\"753\" data-end=\"756\"\u003e• Straight, smooth valve stem for easy inflation\u003cbr data-start=\"804\" data-end=\"807\"\u003e• Removable valve core for serviceability\u003c\/p\u003e\n\u003cp data-start=\"852\" data-end=\"1143\"\u003eTechnical Details\u003cbr data-start=\"869\" data-end=\"872\"\u003e• Wheel Size: 20 inch\u003cbr data-start=\"893\" data-end=\"896\"\u003e• Tire Compatibility: 20 × 1-1\/8 (451 × 28)\u003cbr data-start=\"939\" data-end=\"942\"\u003e• ISO (BSD): 451\u003cbr data-start=\"958\" data-end=\"961\"\u003e• Valve Type: Schrader\u003cbr data-start=\"983\" data-end=\"986\"\u003e• Valve Length: 32 mm\u003cbr data-start=\"1007\" data-end=\"1010\"\u003e• Valve Angle: 0° (straight)\u003cbr data-start=\"1038\" data-end=\"1041\"\u003e• Valve Stem: Smooth\u003cbr data-start=\"1061\" data-end=\"1064\"\u003e• Valve Core: Removable\u003cbr data-start=\"1087\" data-end=\"1090\"\u003e• Wall Thickness: 0.9 mm\u003cbr data-start=\"1114\" data-end=\"1117\"\u003e• Flat Fold Width: 30 mm\u003c\/p\u003e\n\u003cp data-start=\"1145\" data-end=\"1357\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eCompatibility Note\u003cbr data-start=\"1163\" data-end=\"1166\"\u003eThis tube fits ISO 451 wheels only and is not compatible with standard 20-inch ISO 406 wheels. Always verify the ISO number printed on the tire sidewall before purchase to ensure correct fit.\u003c\/p\u003e","brand":"Sunlite","offers":[{"title":"Default Title","offer_id":52636612165946,"sku":null,"price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/5735\/8394\/files\/63123.jpg?v=1768411112","url":"https:\/\/gograva.com\/products\/sunlight-inner-tube-20-1-1-8-451-28-32-mm-schrader-valve","provider":"Grava Adventure Corporation","version":"1.0","type":"link"}