Traxxas SS series tires and wheels are constructed of plastic chrome, 5-split spoke wheels. Sporttraxx Talon Tires pre-glued and pre-mounted with on/off-road tread. INCLUDES: Two pre-mounted wheels and tires with foam inserts Width: 3.4" (86mm) Tire Outer Diameter: 5.75" (146mm) Mounting Hex: 14mm