YunSCM 2PCS Kid Bike 12.5 inch Tire 12 1/2x2 1/4 (12.5x2.25) Casing 57-203 Plus 2PCS 12.5 inch Tube 12 1/2x1.75x2 1/4 SV Valve Compatible 12 1/2x2 1/4 57-203 Tire and Tube