Backspace and offset dont seem to make sense, US rambler mags
Uh, you're talking about something totally different. Rim width is always measured inside to inside, where the tire seats. A 15x8" rim is actually 9" wide measured outside to outside. That has nothing to do with measuring backspace.
Backspace is measured from the outside lip to the wheel mounting surface. That's the definition. Anyone that does it differently than that is wrong, not of a different opinion. Just wrong. And you can see from the specs I listed above and the measurements I showed that Summit does not measure backspace from the inside lip to the wheel mount surface. If they did, my measurements wouldn't match their specs. But my measurements match their advertised specs exactly.
It's all right here in this picture, which is not mine, by the way, I didn't make this up. And yes I know I already posted it, but apparently no one actually looked at it, so here it is again. A 7" wide rim is shown. It has a 5" backspace, a 3" front space, a 25.4mm offset, and an overall width of 8". If you measure a rim some other way than this, it's wrong. These are the definitions, they are the facts. If your opinion does not match the diagram, then your opinion is incorrect.
Uh, you're talking about something totally different. Rim width is always measured inside to inside, where the tire seats. A 15x8" rim is actually 9" wide measured outside to outside. That has nothing to do with measuring backspace.
Backspace is measured from the outside lip to the wheel mounting surface. That's the definition. Anyone that does it differently than that is wrong, not of a different opinion. Just wrong. And you can see from the specs I listed above and the measurements I showed that Summit does not measure backspace from the inside lip to the wheel mount surface. If they did, my measurements wouldn't match their specs. But my measurements match their advertised specs exactly.
It's all right here in this picture, which is not mine, by the way, I didn't make this up. And yes I know I already posted it, but apparently no one actually looked at it, so here it is again. A 7" wide rim is shown. It has a 5" backspace, a 3" front space, a 25.4mm offset, and an overall width of 8". If you measure a rim some other way than this, it's wrong. These are the definitions, they are the facts. If your opinion does not match the diagram, then your opinion is incorrect.
