J-Concepts 3067-3144 Choppers Tires(2) Hazard Wheels 12mm Blue Traxxas Slash 4x4 This is the JConcepts pair of Choppers Rear Tires that are mounted on Black Hazard 12mm Wheels. These Tires and Wheels are for the Traxxas Slash 4x4Features:For the Traxxas Slash 4x4Premounted on 12mm Black Hazard Wheels