Amazon.com : (2 Sets) 18” x 2.125 Kids Bike Replacement Tires and Tubes - Compatible with Most 18” Kids Bikes Like RoyalBaby, Joystar, and Dynacraft - Made from BPA/Latex Free Butyl Rubber : Sports & Outdoors
Amazon.com: Off Road Electric Scooter Tires - Motorcycle Tires Inner Tube Inflatable Tire Electric Scooter Rear Tire Pneumatic Accessories- 10x3.0" Mini Bike Tires Non Slip Off Road Scooter Inflated Tires Offroad :