Currie 12 1/2 x 3.0 Tire - 154-151 Currie V-Tread 12.5x3.0 Tube-Type Tire used on Schwinn, GT, Mongoose, eZip, and I-Zip 500-1000 Series electric scooters as well as many other makes & models. Tire Size: 12.5 x 3.0 inches Tire Inner Diameter: 8 inches Requires Inner Tube