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Aluminum Wheel Emission Calculator. Check out this new tool from LadneFelgi.pl.
Alloy wheels are a key element of a car's aesthetics. One of the parameters to consider when choosing rims is the ET, or wheel offset. ET describes the distance between the center of the rim and the wheel mounting surface. Along with the rim diameter, it's a key element that determines how deep the rim and wheel will sit in the wheel arch. Choosing the right ET not only affects the aesthetics of your car but also its handling, stability, and tire wear. An incorrectly selected rim can lead to friction with the wheel arches or suspension components, or it may protrude beyond the vehicle's outline, which is illegal. Our new tool – the ET calculator – will help you avoid these problems.
Graphical rim ET calculator.
The ET calculator is designed to graphically illustrate the relationship between the standard and new rims . Simply enter the width in inches, the ET in millimeters, and optionally the distance between the current alloy wheel and the rim you intend to purchase. The graphic will show the position of the new rim in the wheel arch, and you can read the values in millimeters indicating how much further or less the new rim will protrude from the standard rim, as well as how much closer or further it will move from the suspension and brake calipers.
This simple tool can save you a lot of trouble when choosing the wrong rims for your car. The ET calculator also prevents errors when manually calculating the rim's position in the wheel arch. Use our alloy rim ET calculator and get accurate information in seconds!
Rim offset calculator – user manual.
Using the ET calculator is intuitive and simple. To use the calculator, simply enter:
- Width of the reference rim in inches.
- ET offset of the reference rim in millimeters.
- Distance in millimeters, if used.
- New rim width in inches.
- ET offset of the new rim in millimeters.
- Distance in millimeters, if used.
How to read the markings on rims and where to find them? For aluminum rims, they're located on the inside of the rim, usually on one of the spokes. For steel rims, the specifications are stamped on the front of the rim.
For example, the standard aluminum rim currently installed on your car is 7" wide and has an offset of ET35. You find a new rim you like, but with different parameters than the standard rim, e.g., 8" and ET55. Based on the data entered, the calculator will automatically calculate the result and present it . From the outside, the new rim will sit 7.5 mm deeper and from the inside 32.5 mm closer to the suspension components than the standard rim.
What is the ET tolerance?
The experts at LadneFelgi.pl advise that extending the rim outward by 10mm-15mm is a safe margin . It's worth remembering a few exceptions here. For example, in the case of tuned cars, those with unusual suspension, or super sports cars like the Audi RS or BMW M5, it's worth consulting our shop's staff to ensure the best fitment for your specific model.
Wheel protruding beyond the vehicle's outline – what are the regulations?
In Poland, as in most European countries, there are regulations regarding vehicle wheels protruding beyond the bodywork. According to Polish law, vehicle wheels (including rims and tires) cannot protrude beyond the bodywork . This is for road safety and the protection of other road users – wheels protruding beyond the bodywork can pose a hazard to pedestrians and other vehicles. If you plan to make changes to your vehicle that could cause the wheels to protrude beyond the bodywork, this may result in a failed MOT inspection and fines .
In summary, the alloy wheel ET calculator is a very useful tool for both amateurs and professionals. It's intuitive and easy to use. It's useful when replacing rims, helping to ensure that the new wheels not only fit but also meet the driver's aesthetic preferences.
And if you have any doubts, before purchasing your dream rims for your car, we encourage you to contact customer service, where our qualified team will be happy to answer all your questions.