What is a defining feature of hub centric wheels?

A defining feature of hub centric wheels is that the center bore should exactly match the hub. This precise fit ensures that the wheel is centered on the hub of the vehicle, which is crucial for proper balance and stability while driving. When the center bore is correctly matched to the hub, it helps distribute the load evenly across the wheel and prevents vibration, leading to improved handling and wear on both the tires and the vehicle.

The other options do not accurately define hub centric wheels. For instance, a flexible center bore would imply that the wheel could fit multiple hub sizes, which contradicts the concept of hub centric design that relies on a precise match. Additionally, hub centric wheels are not limited to use with radial tires; they can be used with various types of tires as long as they are compatible with the wheel specifications. Lastly, the hub does play a significant role in tire performance; a proper fit ensures that the wheel rotates smoothly and maintains vehicle control, thereby affecting overall safety and performance.