{"product_id":"18x1-75-2-125-inner-tube-schrader-straight-valve-02041-whl","title":"18 x 1.75-2.125 Inner Tube 18\" Schrader Valve 47\/57-355 Kids Bike BMX","description":"\u003ch2\u003e18 x 1.75-2.125 Bicycle Inner Tube – Schrader \/ AV Straight Valve\u003c\/h2\u003e\n\u003cp\u003eReplacement inner tube for 18-inch bicycle tyres in the 1.75 to 2.125 inch width range. Designed for rims that use a standard Schrader (AV \/ car-type) valve and suitable for front or rear wheel use when the tyre and rim specification match.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal tube size:\u003c\/strong\u003e 18 x 1.75-2.125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eETRTO \/ ISO family:\u003c\/strong\u003e approximately 47\/57-355\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve:\u003c\/strong\u003e straight Schrader \/ AV \/ car-type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel bead-seat diameter:\u003c\/strong\u003e 355 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e front or rear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e new aftermarket replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 02041-WHL\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Tyre Sizes\u003c\/h3\u003e\n\u003cp\u003eThis tube is intended for 18-inch tyres within the stated width range, including common markings such as 18 x 1.75, 18 x 1.90, 18 x 1.95, 18 x 2.00, 18 x 2.10 and 18 x 2.125, provided the tyre uses the 355 mm bead-seat diameter and the rim accepts a Schrader valve.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e18-inch children's bicycles\u003c\/li\u003e\n\u003cli\u003e18-inch BMX \/ freestyle bicycles\u003c\/li\u003e\n\u003cli\u003eCompact or folding bicycles using 355 mm rims\u003c\/li\u003e\n\u003cli\u003eCompatible e-bikes using the same 18-inch tyre size and Schrader valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant 18-Inch Size Warning\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e18-inch bicycle sizes are not all interchangeable.\u003c\/strong\u003e Check the tyre sidewall before ordering. This listing is for the 355 mm ETRTO family. It is not intended for the different 18 x 1 3\/8 \/ ISO 400 mm wheel family.\u003c\/p\u003e\n\n\u003ch3\u003eFitment Checks Before Ordering\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the tyre sidewall shows an 18-inch size between 1.75 and 2.125 inches wide.\u003c\/li\u003e\n\u003cli\u003eWhere an ETRTO number is shown, confirm the diameter ends in \u003cstrong\u003e-355\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eConfirm the rim is drilled for a Schrader \/ AV valve rather than Presta.\u003c\/li\u003e\n\u003cli\u003eFor unusually deep rims, compare the required valve length with the product photos before fitting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eInspect the tyre and rim tape for sharp objects before installation. Add a small amount of air to give the tube shape, fit it without twisting or pinching, then seat the tyre evenly before inflating to the pressure printed on the tyre sidewall.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMaterial note:\u003c\/strong\u003e equivalent tubes in this size are normally manufactured from butyl rubber. Exact compound and valve length can vary between aftermarket production batches.\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":57502861066615,"sku":"02041-WHL","price":7.0,"currency_code":"SHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0528\/8771\/6007\/files\/20260929_164023.png?v=1790780873","url":"https:\/\/www.motomaniauk.com\/products\/18x1-75-2-125-inner-tube-schrader-straight-valve-02041-whl","provider":"Moto Mania UK","version":"1.0","type":"link"}