tuningblog.eu Your magazine about tuning the car
The offset (ET) defines the gap in millimeters from the wheel center of a rim to its internal support surface on the wheel hub. The wheel hub acts as a center of the wheel. With regard to the offset, the following applies: A smaller rim offset results in a wider track. The offset thus determines the position of the wheels in the wheel house and thus influences the track width of the vehicle. When purchasing new rims, the dimension of the ET should therefore be taken into account. So: Placement of the alloy wheels in the wheel arch - if the ET is too small or too large, this can affect the safety of the vehicle and determine whether the wheel arches need to be extended or the brakes need to have enough freedom of movement. The aesthetics are also influenced by the rim ET
What you need to know about the rim width!
One aspect of new rims that is a mystery to many is the offset, also known as ET. However, it can have a decisive influence, for example on the appearance of the vehicle with the new aluminum and on its safety. It is therefore all the more important that you before the purchase well informed. Actually, the subject of ET is not nearly as complex as it is often portrayed. Regardless of whether you prefer a positive or negative ET of the rims: Here are some important tips to ensure you choose the right rim width.
This is how the offset (ET) is calculated!
According to the definition, the rim offset is the distance between the center of the rim and the wheel mounting surface. The value of the rim ET is always given in millimeters. If you choose a wheel with an ET of 28, we're talking about 28 mm. There are two options when assembling complete wheels. Either the aluminum rim lies on a surface in the form of the brake drum or on the brake disc. At this point, the rim is connected to the vehicle, it will wheel mounting surface or wheel flange called, short flange. As the name suggests, the center of the rim is actually the heart of the rim in cross section.
- In summary: The rim ET defines how far the center of the rim is from the mounting surface of the wheel. Or to put it another way – how deep the aluminum rims are positioned in the wheel house. Choosing the wrong ET could invalidate the vehicle's operating permit.
Positive and negative offset!
There is a differentiation between positiver and more negative offset. If the wheel mounting surface exactly in the middle of the rim is positioned, one speaks of a ET0. However, most vehicles have one positive ET on. This means that the wheel flange is further out than the center of the rim. from one negative ET at rims is when the flange lower positioned inward than the rim center.
How relevant is the offset?
In a nutshell: Very relevant! It is not without reason that the manufacturers specify exact values within which modifications can be carried out. If the value is too low for the vehicle, there are consequences. In other words, in the worst case scenario, the tire may rub against the wheel housing. In this case, an extension of the fender would be necessary. Rim ET: If the ET is too high, the freedom of movement of the brake could be restricted or the wheel cannot be mounted at all. But here you can track plates Remedy. Your task? They ensure that the wheels are positioned further out.
This is how I determine the offset!
You can only find information about ET in the vehicle registration, if your rims are mentioned there. Otherwise there are only the most important data on the approved ones tire sizes noted. If necessary, you can also check the permissible size range from the manufacturer of the rims (from the vehicle with OEM rims) Requests. Basically, if the rim wider is, the rim ET small become. This prevents the rim flange and tire wall from colliding with the steering geometry and the brake. Track width and offset: Put simply: Yes greater the value of the offset, the lower put the wheels in the wheel housing. Therefore, the track width or track gauge is narrower. je small the value, the wider is the trail.
spacers or wheel spacers
The offset serves as an indicator of how well the rim will visually come into its own on the vehicle. But what happens when it's already too late and the combination of wheel and tire adversely affects the vehicle's appearance? Do the Alus appear too narrow? Are the tires and rims not sitting firmly enough in the wheel arches? Then have to spacers he, if there are no other rims with a suitable ET (or no further rims should be bought).
To create a different offset for the rims:
- Spacers, also known as wheel spacers or wheel spacers, are one solution. They adjust the depth of the wheels in the wheel arch so that the rims get a sportier look. They conjure up a few millimeters/centimeters and simulate a larger rim width. Is there still room for maneuver with the rims ET? Should the Alus be further out? In this case, the spacers are a cost effective and easy way to give the vehicle a wider appearance and adjust the ET!
Advantages of the track plates:
- The wheel arches appear fuller, the outer edge protrudes further.
- The tire extends visibly to the wheelhouse.
- Driving stability and safety are increased.
- The result is high track accuracy for special or standard wheels as well as agile and direct response.
- Crosswinds and ruts are almost irrelevant with a widened track or outer edge.
- They ensure freedom of movement of the brake, especially when the wheel offset is too high.
- The widened contact surface makes the wheels appear larger and rounds off the sporty look.
- Equally usable with a sports chassis as with a standard chassis
- Available for many common vehicle models
- They will usually come with one Teilegutachten and partly also with a general operating permit (ABE) delivered.
Of course, that wasn't the end of it!
tuningblog has countless other articles on the subject of car and auto tuning in stock. Do you want to see them all? Just click HERE and look around. In part, we would like to provide you with news but also off the tuning. In our category Tips, products, information & Co We have reviews of car or accessories manufacturers, new ones Tuning Wiki Terms or one or the other Leak veröffentlicht. Just click on one of the following posts!
