What is the minimum distance from the rear bumper to the hub of the back tire called?

The minimum distance from the rear bumper to the hub of the back tire is referred to as the rear overhang. This term denotes the portion of a vehicle that extends beyond its rear axle and is crucial for understanding the vehicle’s dimensions, particularly in relation to parking, maneuverability, and safety during operations. The rear overhang impacts how a vehicle behaves when navigating turns and can influence how far back it can travel without risking contact with obstacles.

Understanding this distance is important for bus drivers and transit operators, as it helps in making better driving decisions, ensuring adequate space is maintained when stopping, and highlighting the importance of awareness regarding the vehicle's length during passenger boarding and disembarking. The concepts of rear clearance, back spacing, and tail length are related to vehicle design, but do not accurately define the specific measurement in question here.