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goforit14  
#1 Posted : Tuesday, June 4, 2019 10:32:07 AM(UTC)
goforit14

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On rear wheels, do you measure wheel offset from outside inner wheel to where the wheel center bolts to wheel, OR where measure where axle contacts to wheel center (snout of wheel center)? based on that
answer is that where weight is actually applied to the tire? Thanks
Mike Dicely  
#2 Posted : Tuesday, June 4, 2019 10:38:22 AM(UTC)
Mike Dicely

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Here is a blurb from our Build Your Own Rear Wheel Product:

https://www.hyperracing....ore.aspx?product=842-000

Terminology: Offset and Backspacing
Always refer to the wheel width stating the outer half first and the inner half last. Example: a 10" wide wheel with a 6" outer half and a 4" inner half would be referred to as a 6" on 4" wheel. You'll also hear the term "Offset" or "Backspacing", these refer to the inner wheel half size. A 6" on 4" could be stated as a "10" wheel with 4" backspacing or 4" offset".

Typically the left rear wheel on a 600 is a 6" on 4" or a 7" on 3" if you run 10", or a 5" on 3" or 4" on 4" if you run an 8". Many teams are starting to run an inner bead lock on the left rear to keep the tire from peeling off the bead on a rough track.

The 600's right rear offsets can vary even more, and axle width is a determining factor. For standard 53" Axles, an 8" on 5" is normal. Many Z-link rear suspension cars use a 7" on 5". For the wider 55" or 57" wide rear axles, you can also use wheels with less offset which moves the wheel center in by running a 7" on 6" or even a 6" on 7".

If you want to get the right rear out but don't have enough axle length, you can go to a 9" or 10" outer wheel half with a 2", 3" or 4" inner.

270's typically run 5" on 3" on the left rear and a 6" on 4" on the right rear.
goforit14  
#3 Posted : Tuesday, June 4, 2019 10:52:35 AM(UTC)
goforit14

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Where then is the weight actually applied for a given offset. Where center bolts to wheel or at axle snout? Thanks....
Mike Dicely  
#4 Posted : Tuesday, June 4, 2019 10:55:23 AM(UTC)
Mike Dicely

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The weight is applied where the wheel center is located. But if you a calculating weight transfer, you use the center-line of the tire.
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