26 x 2.125 STOP-A-FLAT Inner Tube MOUSSE FOAM no puncture innertube (SINGLE) | eBay
Ultraverse Bike Inner Tube for 700x23-25c, 700x35-43c, 28 inch Bicycle Wheel Sizes with 48mm Presta Valve - Butyl Rubber Tubes for Road and Gravel Bikes - 2 Tubes with 2 tire levers