Kids Bike Tire Set 12.5"-20" x2.125

Updated August 6, 2026

New. Bike Tires 12.5"/14"/16"/18"/20"x2.125" for Kids Bike, 2PCS Folding Replacement Bike Tire and 2PCS Bike Tubes 12.5"/14"/16"/18"/20" x 1.75-2.125 Inch Fits Most Kids Bikes, with 4PCS Tire Levers Brand Atutonus Amazon Product B0DLWPZRFT Bike Tires Size: 18 X 2.125 inch (ETRTO: 57-355 mm); MAX Inflate to 40 PSI. Bike Tubes: 18"x 1.75"-2.125". Valve Type: 32 mm Schrader Valve. Suitable for old tires with a tire diameter of 18 in and a width of 1.75-2.125 in. High Quality: Our kids bicycle tires are made of high-quality rubber material, which has excellent wear resistance and shock absorption. The tightly raised tread pattern makes the bike tire effectively anti-slip, ensuring the safety of children during riding. So whether your child is riding on trails in the park or on flat pavement, he'll have a smoother and more comfortable ride.

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