{"product_id":"gicool-2-75-3-00-21-inner-tubes-2-pack-with-tr4-valve-stem-dirt-bike-pit-bike","title":"GICOOL 2.75\/3.00-21 Inner Tubes, 2 Pack with TR4 Valve Stem – Dirt Bike \u0026 Pit Bike","description":"\u003ch2\u003eReliable 21-inch inner tubes for rugged riding\u003c\/h2\u003e\n\u003cp\u003eThe GICOOL replacement inner tubes are offered as a practical two-pack, crafted for dirt bikes, pit bikes, and other off-road setups. Built to fit a universal 21” wheel range, they simplify maintenance and help you stay on track where it counts.\u003c\/p\u003e\n\u003ch3\u003eWhat makes these tubes stand out\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUniversal fit for 21\" rims: 2.75\/3.00-21 (80\/100-21), with compatibility for related sizes like 90\/80-21, 90\/90-21, and 100\/80-21.\u003c\/li\u003e\n  \u003cli\u003ePremium natural rubber with a thickened finish: designed to cushion impacts and extend service life on varied terrain.\u003c\/li\u003e\n  \u003cli\u003eExcellent airtightness and a robust valve seat: helps maintain inflation with less frequent topping up and lowers the risk of tearing.\u003c\/li\u003e\n  \u003cli\u003eSafe and comfortable to ride: reinforced thickness resists punctures and shields against sharp debris across weather and terrain.\u003c\/li\u003e\n  \u003cli\u003eEasy installation: TR4 straight valve stems enable a quick, straightforward swap so you can get back on the road sooner.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReal-world uses and potential benefits\u003c\/h3\u003e\n\u003cp\u003eWhether you’re tackling rocky trails, sandy pits, or muddy paths, these tubes are designed to help maintain a steady ride feel and reliable inflation. The natural rubber construction supports longer life under demanding conditions, and a sturdier valve helps minimize mid-ride interruptions when you’re far from home.\u003c\/p\u003e\n\u003cp\u003eTwo-pack convenience means you’re prepared for a roadside swap or to stock your repair kit. The size range also supports multiple wheel setups on different bikes, adding versatility for weekend riders and daily commuters alike.\u003c\/p\u003e\n\u003ch3\u003eWhat you get and care tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo inner tubes with TR4 straight valve stems for straightforward installation.\u003c\/li\u003e\n  \u003cli\u003eTips: inspect tires for wear, deflate before installation, and replace both tubes if you detect damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: The benefits described reflect the listed features and typical riding scenarios. Actual results may vary with tire condition, riding conditions, and maintenance habits.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What sizes do these inner tubes fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit 21-inch wheels in 2.75\/3.00-21 and related sizes (90\/80-21, 90\/90-21, 100\/80-21).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do the tubes include a TR4 valve stem?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, each tube features a TR4 straight valve stem for reliable inflation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GICOOL","offers":[{"title":"Default Title","offer_id":42465792294997,"sku":"B0DLZFSZNW","price":42.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/gicool-2-75-3-00-21-inner-tubes-pack.jpg?v=1778023433","url":"https:\/\/plentytorque.co.uk\/products\/gicool-2-75-3-00-21-inner-tubes-2-pack-with-tr4-valve-stem-dirt-bike-pit-bike","provider":"PlentyTorque","version":"1.0","type":"link"}