{"title":"21 inch motorcycle inner tubes","description":"\u003cp\u003eThe \u003cstrong\u003e21 inch motorcycle\u003c\/strong\u003e inner tubes fit the front wheel of almost every off-road motorcycle: motocross, enduro, trail and rally-raid. It is the reference front diameter in off-road.\u003c\/p\u003e\n\u003cp\u003eThis range covers the inch sizes \u003cstrong\u003e2.50-21, 2.75-21, 3.00-21 and 3.25-21\u003c\/strong\u003e, as well as their most sought-after metric equivalents: \u003cstrong\u003e70\/100-21, 80\/100-21, 90\/70-21, 90\/90-21, 100\/70-21 and 100\/80-21\u003c\/strong\u003e. To choose, simply read the size printed on your tyre's sidewall and find it among the products below.\u003c\/p\u003e\n\u003cp\u003eDepending on use, two setups: the \u003cstrong\u003estraight TR4 valve\u003c\/strong\u003e (Schrader) for standard use, and the \u003cstrong\u003ereinforced TR6\u003c\/strong\u003e version, with thicker rubber, for demanding riding: cross, enduro, hard enduro where the risks of pinch flats and overheating are higher.\u003c\/p\u003e\n\u003cp\u003eAll our 21 inch motorcycle inner tubes are made of butyl rubber for excellent airtightness and pressure that lasts longer. Looking for another diameter? Browse our full range of \u003ca href=\"\/collections\/chambres-a-air-moto\"\u003emotorcycle inner tubes\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"chambre-a-air-2-50-2-75-21-renforcee-valve-droite-tr6","title":"Motorcycle inner tube 21 inch for tyres 70\/100-21, 80\/80-21, 90\/70-21, 2.50-21 and 2.75-21 - Reinforced","description":"\u003ch2\u003e21 Inch Inner Tube 2.50\/2.75-21 Reinforced - Straight Schrader Valve (TR6)\u003c\/h2\u003e\n\u003cp\u003e21-inch inner tube, 2mm reinforced, for tires 2.50-21 and 2.75-21, compatible with metric sizes 70\/100-21, 80\/80-21, and 90\/70-21. Ideal for the front wheel of trail, enduro, motocross, and maxi-trail motorcycles. Its 2mm reinforced butyl rubber construction offers increased pinch resistance for intensive off-road and on-road use.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003eSizes:\u003c\/strong\u003e 2.50\/2.75-21 (70\/100-21, 80\/80-21, 90\/70-21 compatible)\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eRim Diameter:\u003c\/strong\u003e 21 inch\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eValve Type:\u003c\/strong\u003e Schrader (TR6)\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eValve Orientation:\u003c\/strong\u003e Straight\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Reinforced butyl rubber\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eThickness:\u003c\/strong\u003e 2mm\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 694g\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e 1 unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eCompatible with Tube Type (TT) tires in sizes 2.50-21, 2.75-21, 70\/100-21, 80\/80-21, and 90\/70-21. Suits the 21-inch front wheel of trail, enduro, motocross, maxi-trail, trial, and rally raid motorcycles. May also be used in certain configurations on a non-airtight spoked rim requiring an inner tube. Check the size printed on the tire sidewall before fitting.\u003c\/p\u003e\n\u003ch3\u003eInflation\u003c\/h3\u003e\n\u003cp\u003eThe straight Schrader TR6 valve is compatible with standard inflation equipment: foot pump, compressor, and gas station air pump. No adapter needed for typical use.\u003c\/p\u003e","brand":"MOOVMOOV","offers":[{"title":"Default Title","offer_id":54012784509261,"sku":"CAA25027521HD2TR6","price":22.45,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/5336\/7629\/files\/chambre-a-air-moto-renforcee-valve-1_c32d61b4-7c90-4703-9b1c-f147eec83bcd.webp?v=1785768984"},{"product_id":"chambre-a-air-3-00-3-25-21-renforcee-3mm-valve-droite-tr6","title":"Motorcycle inner tube 21 inch for tyres 90\/90-21, 100\/70-21, 100\/80-21 and 3.00-21 - Ultra-reinforced","description":"\u003ch2\u003eInner Tube 3.00\/3.25-21 Reinforced - Straight Schrader Valve (TR6)\u003c\/h2\u003e\n\u003cp\u003e21 inch inner tube, ultra-reinforced 3mm, for 3.00-21 tires, compatible with metric sizes 90\/90-21, 100\/70-21 and 100\/80-21. Pro Version designed for the most demanding uses: hard adventure trail riding, enduro, motocross, rally raid and dual sport. Its 3mm thickness and 1247g weight offer maximum protection against pinch flats, punctures and heat buildup under intense off-road conditions.\u003c\/p\u003e\n\u003ch3\u003eTechnical Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003eSizes:\u003c\/strong\u003e 3.00\/3.25-21 (90\/90-21, 100\/70-21, 100\/80-21 compatible)\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eRim diameter:\u003c\/strong\u003e 21 inch\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eValve type:\u003c\/strong\u003e Schrader (TR6)\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eValve orientation:\u003c\/strong\u003e Straight\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Ultra-reinforced butyl rubber\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eThickness:\u003c\/strong\u003e 3mm\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1247g\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eContent:\u003c\/strong\u003e 1 unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eCompatible with Tube Type (TT) tires in sizes 3.00-21, 90\/90-21, 100\/70-21 and 100\/80-21. Suited to the 21 inch front wheel of adventure trail, enduro, motocross, rally raid and dual sport motorcycles. Can be used in certain configurations on a non-airtight spoked rim requiring an inner tube. Check the size marked on the tire sidewall before fitting.\u003c\/p\u003e\n\u003ch3\u003eInflation\u003c\/h3\u003e\n\u003cp\u003eThe straight Schrader TR6 valve is compatible with standard inflation equipment: foot pump, compressor and gas station air machine. No adapter required for everyday use.\u003c\/p\u003e","brand":"MOOVMOOV","offers":[{"title":"Default Title","offer_id":54012786966861,"sku":"CAA30032521HD3TR6","price":28.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/5336\/7629\/files\/chambre-a-air-moto-avec-emballage-1.webp?v=1785769009"},{"product_id":"chambre-a-air-3-00-3-25-21-valve-droite-tr4","title":"Motorcycle inner tube 21 inch for tyres 90\/90-21, 100\/70-21, 100\/80-21 and 3.00-21","description":"\u003ch2\u003e21 Inch Inner Tube 3.00\/3.25-21 - Straight Schrader Valve (TR4)\u003c\/h2\u003e\n\u003cp\u003e21-inch standard 1mm inner tube for tires 3.00-21, compatible with metric sizes 90\/90-21, 100\/70-21, and 100\/80-21. Standard version ideal for trail, adventure, enduro, motocross, and dual sport motorcycles. Made from butyl rubber, it offers good pinch resistance and reliable airtightness for regular off-road and on-road use.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003eSizes:\u003c\/strong\u003e 3.00\/3.25-21 (90\/90-21, 100\/70-21, 100\/80-21 compatible)\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eRim Diameter:\u003c\/strong\u003e 21 inch\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eValve Type:\u003c\/strong\u003e Schrader (TR4)\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eValve Orientation:\u003c\/strong\u003e Straight\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Butyl rubber\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eThickness:\u003c\/strong\u003e 1mm\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 400g\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e 1 unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eCompatible with Tube Type (TT) tires in sizes 3.00-21, 90\/90-21, 100\/70-21, and 100\/80-21. Suits the 21-inch front wheel of trail, adventure, enduro, motocross, dual sport, and certain off-road electric motorcycles. May also be used in certain configurations on a non-airtight spoked rim requiring an inner tube. Check the size printed on the tire sidewall before fitting.\u003c\/p\u003e\n\u003ch3\u003eInflation\u003c\/h3\u003e\n\u003cp\u003eThe straight Schrader TR4 valve is compatible with standard inflation equipment: foot pump, compressor, and gas station air pump. No adapter needed for typical use.\u003c\/p\u003e","brand":"MOOVMOOV","offers":[{"title":"Default Title","offer_id":54012789260621,"sku":"CAA30032521TR4","price":15.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/5336\/7629\/files\/chambre-a-air-moto-valve-tr4-1_a823023c-604f-4150-aacf-9576c3df5f99.webp?v=1785769037"}],"url":"https:\/\/moovmoov.com\/collections\/21-inch-motorcycle-inner-tube.oembed","provider":"MOOVMOOV","version":"1.0","type":"link"}