AGRICULTURAL SERIES : Farm Specialist® F-2 / F-2M, FI, HF-1, I-1, F-3 Quality, Durability, and Versatility are essential for handling the wide variety of AG/Construction tire applications. For these reasons, Carlisle is proud to present its Proven Front and Implement product line. We make available both Triple and Quad Rib Fronts, Industrial Fronts, Implements in both regular and Highway speed designs, also tube type and tubeless constructions.