Finding a tire that offers a long tread life is a must for most drivers, and the RM872 EM from Roadmaster does that and more. Featuring an Energy Max rubber compound that's designed to improve fuel efficiency, the RM872 EM's wide outside shoulder ribs help to promote long, even wear. Micro siping on the grooves enhance traction in wet conditions, and the RM872 EM also features stone ejector ribs to help prevent damage from rocks, stones, and other debris.