soundmike

iTrader: (6)

Another installment to the gShack.org Quick 'n Easy series

For full post with photos, please visit the site:
Quick ‘n Easy Wheel Offset Measurement

Many of us have come across threads online where people are selling wheels only to tell you they don’t know the offsets. Or, perhaps, you yourself are in that situation. This guide will make you a wheel offset measuring guru in practically no time at all!

Step 1:
Place your wheel on a clean flat surface, face down. I highly recommend a clean sheet here to protect your wheels face.

Step 2: (Note: You’ll get a more accurate measurement if the level sits on the lip, not the tires sidewall)
Measure the height (width) of your wheel from the floor (face/outer lip) to the top (inner lip.) An easy way to do this is to rest a level at the top then measuring to the lowest point as shown in the picture.
Take down this #, label it as “A”

Step 3:
Measure the distance from the hub to the same point on the level. Jot this # down as “B”

Step 4:
Using the formula Offset=B-(A/2), we can now determine the offset.

In the photo samples:
A = 295
B = 186

Offset = 185-(295/2)
Offset = 37.5mm

*Numbers are rounded off, the sample is not meant to be an accurate #, but to demonstrate how to perform the measurement.

Black Betty

iTrader: (60)

Thanks Mike. I've always chuckled at some of these companies that "don't release offset numbers" for their wheels. A slow third grader with a couple of rulers can figure it out in minutes. But that doesn't add to the exclusivity and mystique of their custom wheels, does it? Lol.

soundmike

iTrader: (6)

You're welcome. You and i, my friend.