2-Pack 12.5 x 2.25 Scooter Tire Tubes 12 1/2 x2 1/4 CR202L-A60 Angled Valve Stem Heavy Duty 12 Bike Tubes Compatible with Most 12.5 X 1.75/2.25 12 1/2 x2 1/4 Kid Bike Tubes/Scooter Inner Tubes