The thickness of a wheel rim at the bead edge, where the tire interfaces with the rim, is crucial for ensuring proper tire mounting, sealing, and structural integrity. This thickness typically ranges from 4 to 8 millimeters, depending on the type of wheel (e.g., steel or alloy) and its intended use (e.g., passenger car, truck, or motorcycle). Adequate thickness ensures that the rim can withstand the stresses of driving, including impacts and lateral forces, while providing a secure fit for the tire bead to prevent air leakage and maintain tire pressure. For more detailed information, visit Bryan's Garage.