One new Carlisle Smooth Operators replacement tire (13 x 5 x 6) for the following equipment: Wheelbarrows, Garden Tractors, Riding Lawn Mowers, Lawn & Garden Equipment, Farm Equipment, Utility Vehicles and more. Tire only (rim not included). This tire provides optimum contact with a variety of surfaces for easy traction and a smooth ride. Tread Pattern: Smooth Operators Tread Pattern. Smooth Ply Models. This part fits: Smooth Operators. Reference Numbers: B1TI39.