| Wheel Size Change Offset Calculator |
Another simple calculator for figuring out the
offset of a rim when you change the size of it.
The measurements are usually pretty easy
with the rim off the car, and it is always best
to start with these numbers as guidelines.
Since I'm not an artist, images are gathered
from the web with any branding left intact.
The several images show where to measure
and what a positive, zero and negative offset
wheel might look like. The image of the Fikse
wheel cutaway has a lot more definitions for
wheel related terms.
offset of a rim when you change the size of it.
The measurements are usually pretty easy
with the rim off the car, and it is always best
to start with these numbers as guidelines.
Since I'm not an artist, images are gathered
from the web with any branding left intact.
The several images show where to measure
and what a positive, zero and negative offset
wheel might look like. The image of the Fikse
wheel cutaway has a lot more definitions for
wheel related terms.
Zero Offset
The hub mounting surface is even with the centerline of the
wheel.
Positive
The hub mounting surface is toward the front or wheel side of
the wheel. Positive offset wheels are generally found on front
wheel drive cars and newer rear drive cars.
Negative
The hub mounting surface is toward the back or brake side of
the wheels centerline.
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