Positive offset means the mounting face is toward the outside of the wheel(past the centerline of the wheel) and lower offset means the mounting face is toward the backside of the wheel. If you machine down the mounting face, it becomes closer to the "street side" of the wheel making it a higher offset.

 

No. Adding material to a back pad pushes the wheel outward from the centerline of the vehicle, making the offset more negative. Removing material tucks the wheel further under the vehicle, making the offset more positive.

HRE Monoblok wheels are not exactly lightweight. The P40 in 19x8.5 weighs 21.6 lbs. The 19x11 weighs about 24.9 lbs.

 

Contradicts what you said.

If you reduce material from the mounting face of the wheel it brings the wheel "in" closer to the the centerline of the car. That's a negative offset.

 

The same size HRE wheels are 2.4 pounds lighter each front and 4.5 pounds lighter each rear than factory Porsche 997 Turbo forged wheels manufactured by Fuchs. In my opinion the HRE P series wheels are considered lightweight.

 

If you remove material from the back pad of a wheel you increase the distance from the centerline to the backpad.

 

Offset just means where the mounting face is in relation to the centerline of the wheel(not in relation to the car). If the offset is neutral, the mounting face is in line with the center of the wheel. If the mounting face is closer to the back of the wheel (in relation to the centerline) that means you have a negative offset.

I hope that explains it better.

 

IMO, at under 20 lbs for the front wheel, the Champion and Dymag wheels better deserve the moniker.

 

HRE monobloc wheel weights are within 1 pound to Champion wheels that have similar design features, in this case flat face, or no lip. The Dymag wheels you mention are nearly twice the $.

 

You win.

 

Is this not correct?

 

No this is not correct. The positive offset and negative offset description and images are reversed.

 

Would you please look at this from the Tire Rack and tell me if it then coincides with what I above published?

http://www.tirerack.com/wheels/tech/...jsp?techid=101

 

The description and image from Tire Rack are correct. I may be better able to explain this on the phone. Please call.

 

After reading your description and reconsidering your drawings I would agree that your drawings and description are correct.

 

That is a big help for me, and I apprecaite you confirming this.

So then as to my original proposition, if a wheel maker removes material from the back of the wheel, it moves in a negative direction=negative offset.

So to get a positive offset two things would have to occur:

a) the rear forging would have to be quite deep (thick) to be machine removed to the desired offset
b) or material would have to be added such as in a spacer.

Thus, the wheel would have to be forged to have enough material to allow its offset to be changed by machining.