High Quality12'' Rims 12x1.75 Wheel Hub Use 12 1/2 X 2 1/4 12 1/2x2.75 Tire Inner Tube Fit Many Gas Electric Scooters E-bike - Motorcycle Tires & Wheels - AliExpress
Kenda 12-1/2" x 2-1/4" 70° Bent Valve Schrader Kids Bike / Stroller Inner Tube | eBay
Amazon.com: 12 1/2 x2 1/4 Tire and Tube Set, 12.5x2.25 Dirt Bike Tire, 12.5 x 2.25 Inner Tube and Tire Compatible with Razor Pocket Mod Bella Betty Bistro Daisy Hannah Kid Bikes by BOOTOP : Automotive