Key Features: Advanced X2 S3 Compound (Super Soft & Super Sticky) Fits 1.9 Wheels Outer Diameter: 3.8in / 96.6mm Inner Diameter: 1.83in / 36.5mm Width: 1.43in / 36.5mm Each Tire Weight: 1.97oz / 56g Includes Foam Inserts Overview: These are the Licensed Goodyear Wrangler Duratrac 1.9 Scale Tires. These have been Officially Licensed by the Goodyear Tire and Rubber Company. Note: Due to many different methods to design tires and wheels, we have no control over other manufacturers products. So we can only tell you that RC4WD tires and wheels work together. In some cases our wheels and tires will work with other brand wheels and tires, but we can not guarantee the outcome.