Backspacing?

tissimo

Stock is boring :(
Apr 5, 2005
4,238
0
0
40
Melbourne, FL
is back spacing measured at the same place as offset (mounting surface)? I've been looking at drag wheels and was going by that to see what'd fit..
 

boostadikt

Freeway Foreplay
May 11, 2006
678
0
0
c-ville, Utah
its not the same thing as offset, its from the lip to the mounting surface.... i don't know what it is on a supra.

"Backspacing is The distance from the mounting surface to the inside lip of the wheel. This measurement is closely related to offset (without actually measuring, backspacing is about equal to [Wheel Width / 2] + [Offset] + [about 1/4]"

drw_wheel_backspace.jpg
 

tissimo

Stock is boring :(
Apr 5, 2005
4,238
0
0
40
Melbourne, FL
boostadikt said:
its not the same thing as offset, its from the lip to the mounting surface.... i don't know what it is on a supra.

"Backspacing is The distance from the mounting surface to the inside lip of the wheel. This measurement is closely related to offset (without actually measuring, backspacing is about equal to [Wheel Width / 2] + [Offset] + [about 1/4]"
yea thats what I was doing.. but added 1/2 inch to be safe :)