Quote:
Originally Posted by ericvanderwoodsen
No way et25 and et35 can be identical with the same wheel width so someone has their pants on fire  . In your theory, if you keep adding material to the back of the hub the offset would never change that's like saying adding a spacer changes the offset to a wheel.
Notice how the hub never changes in thickness but the hub is moved deeper into the wheel with a lower offset creating a more concave look.
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Yes way. they can be identical and what you're saying doesn't disprove that. The offset is determined by where the back of the hub is, regardless concavity. Also you're showing me example of hugely different offsets. Since the choices of offsets with cheap wheels are rarely more then 10/15 mm apart, there's no point in designing a whole different wheel with more/less concave face.Its common for cheapo wheel companies to do this, this way they only need to design one face for each wheel width. From there the offset is determined by the depth at which they machine the back of the hub.
I don't know if XXR does this for sure but it's pretty common and they are very cheap, so its likely. Also having seen the two in person I could not see a difference in concavity.