Comes with compatible inner tubes. Package consists of 2x 26x2.125 tyres and 2x Schrader inner tube bundleSize: 26 x 2.125 inches. ETRTO 54-559 tyre. Weight: 800gr each slick tyre. Max inflate to 40PSI (280 kpa)Made of high quality nylon and rubber compound. Steel wire cord bead for tyre reinforcementFast Rolling high traction tread for faster and more comfortable ride. Also, provides good grip on uneven surfaces like tarmac roads or pavement. Perfect replacement tyre for mountain or road bicycles with 26" wheels- - buy with confidence from UK brand. Full after-sale support and manufacturer warranty. - tyres has passed all relevant CE and ISO certificates.