{"product_id":"heavy-duty-2-mm-motorcycle-inner-tube-80-100-21-butyl-rubber-tr-4-80-100x21","title":"Heavy Duty 2 mm Motorcycle Inner Tube 80\/100×21 — Butyl Rubber, tr‑4 80\/100x21","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis aftermarket motorcycle inner tube is intended as a replacement tube for the supplied 80\/100×21 tire size. It features 2 mm thickness, butyl rubber construction, and the tr‑4 80\/100x21 reference shown in the title.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAftermarket motorcycle inner tube\u003c\/li\u003e\n\u003cli\u003e2 mm thickness\u003c\/li\u003e\n\u003cli\u003eButyl rubber construction\u003c\/li\u003e\n\u003cli\u003eSpecified for tire size 80\/100×21\u003c\/li\u003e\n\u003cli\u003etr‑4 80\/100x21 reference\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMotorcycle tire size: 80\/100×21\u003c\/li\u003e\n\u003cli\u003eValve and size reference: tr‑4 80\/100x21\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProduct Type: Motorcycle inner tube\u003c\/li\u003e\n\u003cli\u003eThickness: 2 mm\u003c\/li\u003e\n\u003cli\u003eMaterial: Butyl rubber\u003c\/li\u003e\n\u003cli\u003eSize: 80\/100×21\u003c\/li\u003e\n\u003cli\u003eReference: tr‑4 80\/100x21\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is this inner tube used for? \u003cstrong\u003eA:\u003c\/strong\u003e It is used as a replacement inner tube for a motorcycle tire matching the supplied 80\/100×21 size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How should fitment be verified before purchase? \u003cstrong\u003eA:\u003c\/strong\u003e Compare the tire size, thickness, and tr‑4 80\/100x21 reference with the existing tube or vehicle requirements before purchase.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eThis is an aftermarket replacement part for the referenced application and is not represented as genuine or original equipment. Compatibility may vary by model, production date, serial number, or existing part number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"RivetOak","offers":[{"title":"Default Title","offer_id":49123941253220,"sku":"LL1B10977","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/6647\/7156\/files\/s-l1600_7423aaa1-8a41-4198-80a8-14f261b8704a.jpg?v=1789146684","url":"https:\/\/www.rivetoak.com\/products\/heavy-duty-2-mm-motorcycle-inner-tube-80-100-21-butyl-rubber-tr-4-80-100x21","provider":"RivetOak","version":"1.0","type":"link"}