# What are ET wheels?

## What are ET wheels?

Offset is stamped on a wheel as an ET value, which refers to the German phrase “Einpress Tiefe.” ET indicates the distance between the mounting surface and the geometric centre of the wheel (the symmetry axle), usually expressed in millimetres. When the ET value decreases, the alloy wheels will protrude further out.

## What does ET35 mean?

ET35 is the offset – the distance of the hub mounting surface to the wheel’s symmetry axle expressed in millimetres.

## What is the ET number on wheels?

In practice, the ET-value is the number in millimetres that the centre line of the wheel deviates from the mounting surface (on the wheel hub). As a rule of thumb: the higher the ET, the more a wheel is positioned inwards, the lower the ET, the more a wheel protrudes outwards.

## What is ET size?

The endotracheal tubes size (“give me a 6.0 tube”) refers to its internal diameter in millimeters (mm). The ETT will typically list both the inner diameter and outer diameter on the tube (for example, a 6.0 endotracheal tube will list both the internal diameter, ID 6.0, and outer diameter, OD 8.8).

## What is ET in alloy wheels?

ET stands for einpresstiefe, or for those whose German isn’t up to scratch, insertion depth. This is a number stamped on the rear spokes or mounting face of an alloy wheel. The ET of a wheel is the measurement in mm of how far the wheel’s centre line is from its mounting face.

## What is JJ in rims?

JJ refers to the contour of the bead seat on the wheel, essentially its shape ( “J” indicates the shape of the letter J).

## What does H2 mean on wheels?

What does H2 mean ? This markings stands for the wheel hump, it usually appears at the very end of the wheel markings. It corresponds to the rigidity of the wheel. There are several wheel humps out there.

## What does 9J mean on wheels?

Hi, J is the type of rim & 8.5 & 9 are the rim width in inches, so 9J is 1/2 an inch wider than 8.5J.

## Is ET positive or negative Offset?

Positive Offset wheels have their mounting face toward the front face of the wheel. Most front wheel drive vehicles have positive ET wheels. Zero Offset wheels have their mounting face even with the center line of the wheel and are by definition “ET 0″.

## What does et 39 mean?

ЕТ39. ET is the offset, that is the distance between the centerline of the wheel and the plane of the hub-mounting surface of the wheel. The offset is measured in millimetres and can be positive or negative. In our case it is positive: 39 mm.

## How do I choose wheel offset?

Subtract the smaller number from the larger number. That gives you the offset of the wheel. If the centerline number is smaller than the hub measurement, offset is positive.

## What is PCD rim?

On any trailer wheel assembly or rim, the Pitch Circle Diameter (PCD) is the diameter of the circle which passes through the centre of all the wheel bolts or wheel rim holes. The center of every bolt hole lies along the edge of the pitch circle and are evenly spaced.

## Is ET positive or negative offset?

Positive Offset wheels have their mounting face toward the front face of the wheel. Most front wheel drive vehicles have positive ET wheels. Zero Offset wheels have their mounting face even with the center line of the wheel and are by definition “ET 0″.

## What is 7J rim size?

Rim Size. The rim labelling indicates the width in the first place as well. In 7J x 17 H2 ET38, 5×112 LK it is 7 inches. Now you have to know that a rim of this width fits on a tyre with a width of 195 to 225 mm.

## How wide is 8.5 J?

Tyre overall rolling diameterRim WidthMinimum tyre widthMaximum tyre width8.0 Inches215 mm245 mm8.5 Inches225 mm255 mm9.0 Inches235 mm265 mm9.5 Inches245 mm275 mm