[iansr33]

Hi people. How can i find out the offset of my wheels, where do i measure to if i put a ruler on the mating face of the wheels?

Ian

 

[Alex j B]

Is it not stamped on the inside of the spokes?

Alex B

 

[wisecobandit]

http://www.yokohamatire.com/utwheels.asp
https://www.rsracing.com/tech-wheel.html#backspace

 

[SARU]

normally that is cast or stamped on the back of the wheel like "ET**"
if you want to measure it with a ruler then you'll need to measure rim width as you need to locate the middle, then measure how far the flange/mating face is off that middle in millimeters and you have the ET value

 

[iansr33]

i think my wheels have a offset of 18!!!