The amount your rear wheels will go 'off-track' depends on what factor?

The amount your rear wheels will go 'off-track' is influenced primarily by the distance between the front and rear wheels, commonly referred to as the wheelbase. This factor plays a crucial role in how a vehicle maneuvers, particularly when making turns. A longer wheelbase tends to reduce the off-tracking distance because the rear wheels have a larger radius to follow when turning.

As the vehicle turns, the front wheels pivot around a point, and the rear wheels follow a path that is slightly offset from the front wheels. The greater the distance between the front and rear axles, the less pronounced the off-tracking effect will be during turns. This is particularly important for larger vehicles like buses, which need to navigate turns carefully to avoid striking obstacles or curbs.

Other factors such as the weight of the bus, the length of the bus, and the width of the bus may affect general handling and stability, but they do not directly determine how much the rear wheels will go off-track during turns. These features contribute to the overall dynamics of the vehicle but are secondary to the wheelbase in this specific context.