2 x Aero Sport E Bike/Bike Butyl Rubber Inner Tubes to fit 14" 1.75 2.125 with Schrader Valves

2 x Butyl rubber inner tubes to fit 14" x 1.75 - 2.125 cm tyres with Schrader Valves ETRTO 47/52 - 254 100% Butyl rubber tube restricts air loss which increases tyre life and maximises performance. Butyl rubber has increased durability and is more resistant to punctures Each Butyl tube is inflated under pressure for 24+ hours to ensuring 100% no leaks