Offset to backspacing
11-06-2016, 08:04 PM
#1
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Year: 1999
Model: Cherokee
Engine: 4.0
Offset to backspacing
I need some help. I'm looking at some rims on craigslist. The guy says they are -12 offset. What would the backspace be? I know the differences but not how to convert haha
11-06-2016, 10:50 PM
#2
CF Veteran
gotta know how wide the rims are.
-12 is how many millimeters the mounting surface is off center. a minus offset will make the tire stick out further than a positive offset.
so if it's an 8 inch wide rim, 4 would be center. then 12mm is about half an inch, so you would be in between 3.5 and 3.75 backspacing.
if it's a 10 inch rim, 5 is center, so it would be like 4.5 backspacing...
there is 25.4mm to an inch
-12 is how many millimeters the mounting surface is off center. a minus offset will make the tire stick out further than a positive offset.
so if it's an 8 inch wide rim, 4 would be center. then 12mm is about half an inch, so you would be in between 3.5 and 3.75 backspacing.
if it's a 10 inch rim, 5 is center, so it would be like 4.5 backspacing...
there is 25.4mm to an inch
11-07-2016, 05:48 PM
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Year: 93 2 door
Model: Cherokee
Engine: 4.0
cut a piece of wood to match the diameter of the wheel. Bring a measuring tape and measure from the wheel mounting surface to the piece of wood
Backspace
Backspace
11-08-2016, 01:53 PM
#6
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You probably know most of those things. Hopefully that will help the next guy searching for backspacing.