01-13-2024, 03:00 PM | #1 |
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Who makes the widest 315s for or rides?
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01-13-2024, 03:11 PM | #2 |
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Tires of the same specified width (315) but of a different model or manufacturer will be slightly different in actual width. You can look up the available 315/30/22s on Tire Rack and compare the measured/section width between the options (which can vary further based on rim width, but for this comparison I suspect they're all specified on the same wheel size). Some run narrow, some run wide.
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01-13-2024, 03:32 PM | #3 |
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I would think the variation in actual width will be small. After all, the contact patch is the same. Cannot make the actual side wall much wider, right?
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01-13-2024, 03:37 PM | #4 |
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I think you are referring to tread width. The tire width is from outside of sidewall to outside of the other sidewall so the contact patch can vary. As you said though, the variation will be very small, I have seen no more than 3% mentioned for the width.
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01-13-2024, 06:07 PM | #5 | |
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And don't even get me started on the meat Ingles number that is the tread wear rating, lol. |
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01-13-2024, 06:09 PM | #6 | |
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01-13-2024, 06:15 PM | #7 |
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Because when you're making cheater tires the section width is a "guideline" more than a requirement, lol. I don't know how they convince themselves they made a tire of that size, but look up with width of a BFG or Goodyear tire and compare it to the width of a Nitto of the same size... Major differences, especially in wide tires like on the back of a Corvette.
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01-13-2024, 06:18 PM | #8 | |
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01-13-2024, 08:13 PM | #9 | |
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These two tires are both the same spec "size", but clearly not the same actual size. |
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01-13-2024, 08:15 PM | #10 | |
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"Section width is the measurement from inner sidewall to outer sidewall when properly mounted, inflated, and without vehicle load. The measurement is in millimeters and doesn’t include ornamentation molded into the sidewall such as the lettering, protective ribs, and similar extensions that aren’t part of the structural sidewall." "Measuring the section width of your tire requires beginning with it mounted onto an appropriately sized wheel with the correct wheel diameter and rim width for the tire being measured. The tire must be inflated to the proper air pressure but not mounted onto a car or truck for measurement. Measurement is performed using a tool that can properly span the entire width of the tire and accurately contact the widest point on each sidewall. Official measurements are performed with the tire mounted to an industry assigned measuring rim." https://tiregrades.com/tire-anatomy/...dth-on-a-tire/
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01-13-2024, 08:43 PM | #11 |
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I get it (but apparently not how to add images). One is a Goodyear (on the right), the other a Toyo(on the left). Both 315s.
Like I said, I dunno how they convince themselves they're both 315s, but they are. |
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01-13-2024, 08:59 PM | #12 |
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It is not worth our time discussing it but there is something else going on. There is no way a manufacture is going to take the chance of running afoul of federal /NHTSA regulations and not put the correct information on the tires. 571.139 defines Section Width as the linear distance between the exteriors of the sidewalls of an inflated tire, excluding elevations due to labeling, decoration, or protective bands and that is a required time to be on the tires.
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01-13-2024, 09:10 PM | #13 |
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It's the same as shoes: why do different manufacturers size 11's fit different?
There is for sure a difference in width between 'same' sized tires, it's not debatable. Tire rack and other respected sellers talk about it, and state the differences. Also a summer tire may be wider than the a/s tire of the same size from the same manufacturer. |
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01-13-2024, 09:14 PM | #14 | |
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One observation. Tires pictures in this link https://tiregrades.com/tire-anatomy/...dth-on-a-tire/ Are they even DOT tires?? My guess is the right one isn’t DOt approved. It is for recreational use only, in this case, track or drag strip tires. When it isn’t dot approved, yeah spec has very little meaning.
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01-13-2024, 09:36 PM | #15 | |
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These are street legal for reference. |
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01-13-2024, 09:37 PM | #16 | |
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