The Goodyear Tire & Rubber Company announced a new size, 40.00R57, to the Goodyear RH-4A+ tire lineup. With the initial launch last fall, the RH-4A+ is engineered to deliver a lower operating cost per hour and higher productivity in hard rock underfoot conditions. The Goodyear RH-4A+, 40.00R57 tire provides the following benefits and features: Increased hours to removal with its high net-to-gross tread pattern and extra-deep E-4+ tread depth; Cool operating temperatures from the tread's centerline blading, shoulder lug pockets, and shoulder lug side notches. The Goodyear RH-4A+ is now available in sizes 40.00R57, 59/80R63, 46/90R57 and 27.00R49 through Goodyear's global network of authorized OTR dealers. It is available in customized casing constructions and is made with Goodyear's proprietary tread compounds. The Goodyear RH-4A+ is part of Goodyear's Total Mobility platform of trusted products, reliable services and tire management solutions – all delivered by a global network.