The et value of the wheel rim is also called the et offset value, and the et value is the offset value, which is the offset.In fact, it refers to the degree of deviation between the rim installation interface and the centerline of the rim. If the et value is greater and becomes a negative value, then it proves that the rim installed on the body will deviate from the outside. So in other words, different et values will affect the wheel track, and the wheel track will affect the maneuverability of the car.
And under normal circumstances, the smaller the value of et, the more the rim will protrude outside the wheel arch.And there are only three degrees of deviation between the interface of the rim installation and the centerline of the rim, one is positive, one is 0, and the other is negative.Among them, the direction to the outside is positive, but the direction to the inside of the rim is negative.And changing the rims will change the wheel track of the car, and the wheel track will affect the distance of the centerline.
So in short, the et value is positive and negative. In most cases, the et value of a car is usually positive. Only a few vehicle models or four-wheel drive vehicles will use negative values. Only off-road vehicles will be installed in the process of use. Copied other vehicles usually install upright wheels.For example, the offset of most vehicles should be et40. If the value is replaced with et45 or et50, then in terms of visual effects, the rim will be easier to enter the wheel arch than the original rim.
Therefore, if you replace it with a rim that is less than the et40 offset value, the visual effect will look more outward than the original rim. This is because the et value is negative, so it can be seen from the visual effect that the rim looks like it is mounted outside the body.
