The configuration detailing how a wheel attaches to a vehicle’s hub is a critical specification. For the specified model year of the Pontiac Bonneville, this configuration, often expressed numerically, describes the circle on which the wheel studs are located. For example, a configuration of 5×115 indicates five studs are spaced evenly on a circle with a diameter of 115 millimeters. This measurement is essential for ensuring compatibility between the vehicle and its wheels.
Correct wheel fitment offers several benefits. It guarantees secure wheel mounting, minimizing the risk of wheel detachment during operation. It ensures proper load distribution, contributing to vehicle stability and handling. Historically, understanding these specifications has been crucial for technicians and vehicle owners alike, particularly when replacing wheels or upgrading to aftermarket options. Using incorrect wheel configurations can lead to significant safety hazards and mechanical damage.
