M-Series aluminum wheels from Alcoa Wheel Products are designed for medium-duty commercial vehicles, including the Sprinter, Ford Transit and GM 3500/4500. Each wheel provides the same benefits as Class 7 or Class 8 heavy-duty forged aluminum wheels, but are customized to fit medium-duty Class 2 through Class 6 applications. Single-piece forged aluminum construction is designed to provide a smooth ride, extend tire life and lower operating costs. 800/242-9898; www.alcoa.com/alcoawheels.