1. Our commercial wheels are constructed by forging aviation-grade aluminum (6061) and then heat treated (T5T6). Easy to clean, corrosion-resistant, not easy to deform under high torque. 2. German CNC tools are used to construct our commercial wheels,The surface is mechanically bright metal. (PCD): 10x285.75mm,Bore (CB): 220.1mm. 3. Less weight, greater strength, and increased lifespan compared to steel wheels. Suitable for truck steering, guidance, drive, trailer position. 4. Well balanced, low wobble, 30% increased tire lifespan. 5. Tried and true for 10 million+ trucks. Recommended tires:255/70R22.5,275/8022.5,295/75R22.5,11R22.5. Description: Our commercial wheel 22.5 x 8.25 Truck/Bus Wheel is made of forged aluminum which allows the wheel to be lighter than steel wheels and has a metallic silver to fight erosion. Recommended tires:255/70R22.5,275/8022.5,295/75R22.5,11R22.5. Specification: Diameter: 22.5 in Width: 8.25 in Rim Material: Aviation-grade Forged Aluminum (6061) Bolt Pattern (PCD): 10x285.75mm Bore (CB): 220.1mm Max Load: 7400 LB Outset: 143mm Weight: 47 lb Finish: Machined Bright Hub Pilot