Coker Tire Company hand builds each Firestone Smooth tread Clincher tire for antique vehicles. All Gray tires are excellent fitments for restored or surviving antiques requiring a 28- or 30-inch x 3 tire. These tires are carefully crafted from premium materials. Coker Tire Company is the world's leading supplier of tires and wheels for collector vehicles. Speak to a Tire Expert for assistance in selecting the correct fitment or for more information on our custom wheels for antique vehicles.