FYI: what all those letters mean
Four Wheeler Mag why are metric sizes 2/3rds metric but the tire radius is in inches? Do they do it that way in Europe? I never heard of the yellow dot described in this article.
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IMHO way too much is made out of the whole metric/inch thing. You'll find that most places in the world can use them interchangeably. It's only here in the USA where we have this "one or the other, as long as it's not metric" attitude.
You don't need to need to know what the rim measures in millimeters. All you need to know is that the number matches. A 16 tire will not fit on a 17 rim. Notice how I removed the units of measure? It doesn't matter! 16 only fits 16, 17 only fits 17, 19.5 only fits 19.5. You can't mix and match, so who cares what the units are?
Same goes with the width to a degree. You can go up and down a size, like you always could. If you can count and know when a number is bigger or smaller than another number, you're good to go.
If you stop trying to think of the numbers as "measurements" and instead think of them as "sizes" like shoe sizes, they're a lot easier to comprehend.
You don't need to need to know what the rim measures in millimeters. All you need to know is that the number matches. A 16 tire will not fit on a 17 rim. Notice how I removed the units of measure? It doesn't matter! 16 only fits 16, 17 only fits 17, 19.5 only fits 19.5. You can't mix and match, so who cares what the units are?
Same goes with the width to a degree. You can go up and down a size, like you always could. If you can count and know when a number is bigger or smaller than another number, you're good to go.
If you stop trying to think of the numbers as "measurements" and instead think of them as "sizes" like shoe sizes, they're a lot easier to comprehend.
