What is the standard size reference for car steering wheels?

[SanWalker]

Generally, most sedans use a medium-sized steering wheel of 38cm, while some may have a large-sized 40cm or small-sized 36cm wheel. The importance of steering wheels: As a crucial component of the steering system, any minor discrepancy in the steering wheel can lead to serious consequences. Therefore, when purchasing a steering wheel cover, it is essential to choose one that matches the original wheel size. If the steering wheel cover is significantly larger than the original, it may slip during turning or when the wheel returns to center, resulting in insufficient steering. Function of the steering wheel: Its function is to convert the force applied by the driver on the edge of the steering wheel into torque, which is then transmitted to the steering shaft.