Tire size standards?
01-18-15, 07:46 AM
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Tire size standards?
Looking for 700 38c tires. This ebay listing is for Michelin Protek 700 x38 tires but in the listing it states
ISO Width 35
Labeled Size 35
Michelin Protek 700x38 Black | eBay
Why does it say labeled size 35 if they're supposed to be 38c tires? Wondering if the listing is mislabeled or there's something about tire sizing I'm not clear on.
Thanks for all input.
ISO Width 35
Labeled Size 35
Michelin Protek 700x38 Black | eBay
Why does it say labeled size 35 if they're supposed to be 38c tires? Wondering if the listing is mislabeled or there's something about tire sizing I'm not clear on.
Thanks for all input.
01-18-15, 09:22 AM
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Wouldn't blip my radar.
I suspect that Michelin is selling them as 35mm tires. In the real world, bicycle tires will seldom measure exactly the label width when mounted on a rim and inflated. In fact, the particular rim that you are using will affect the measured width of the tire. If it was my bike I'd pop them on and ride. You'll never notice a 3mm difference.
I suspect that Michelin is selling them as 35mm tires. In the real world, bicycle tires will seldom measure exactly the label width when mounted on a rim and inflated. In fact, the particular rim that you are using will affect the measured width of the tire. If it was my bike I'd pop them on and ride. You'll never notice a 3mm difference.
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01-18-15, 09:45 AM
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The wheel is 700c in diameter, 38 C is the width of the tire in mm's. I'm not sure but I think "ISO Width 35" is a particular standard of ISO that measures the width in a different way.
Last edited by AbbertHobs; 01-23-15 at 09:06 AM.
01-18-15, 10:17 AM
#5
aka Phil Jungels
Wouldn't blip my radar.
I suspect that Michelin is selling them as 35mm tires. In the real world, bicycle tires will seldom measure exactly the label width when mounted on a rim and inflated. In fact, the particular rim that you are using will affect the measured width of the tire. If it was my bike I'd pop them on and ride. You'll never notice a 3mm difference.
I suspect that Michelin is selling them as 35mm tires. In the real world, bicycle tires will seldom measure exactly the label width when mounted on a rim and inflated. In fact, the particular rim that you are using will affect the measured width of the tire. If it was my bike I'd pop them on and ride. You'll never notice a 3mm difference.
01-18-15, 11:07 AM
#6
Banned
ETRTO set the agreed upon standards for the Bead Seat Diameter so Tire and Rims Fit each other .. 622 is that Number for 700c ..
second number is the tire - Width.. ala 622 - 32.. [35, 37, etc]
second number is the tire - Width.. ala 622 - 32.. [35, 37, etc]
Last edited by fietsbob; 01-18-15 at 11:12 AM.
01-18-15, 11:18 AM
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Why are you getting worked up over an ebay listing that is most likely a typo?
Michelin offers that tire in a variety of widths, including 35, 38 and 40mm. The ebay listing is mixing two tires, and either the title or the details are wrong.
FWIW the so-called ISO width is simply matter of nomenclature, ie. a 700x 38c tire would be the same as an ISO (ERTRO) 38-622. So the nominal ISO width which is molded into the tire will match the width that might appear on a label. However, there will be variance between nominal width and actual width for a variety of reasons, one being the rim' actual width.
Michelin offers that tire in a variety of widths, including 35, 38 and 40mm. The ebay listing is mixing two tires, and either the title or the details are wrong.
FWIW the so-called ISO width is simply matter of nomenclature, ie. a 700x 38c tire would be the same as an ISO (ERTRO) 38-622. So the nominal ISO width which is molded into the tire will match the width that might appear on a label. However, there will be variance between nominal width and actual width for a variety of reasons, one being the rim' actual width.
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01-18-15, 12:29 PM
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Looking for 700 38c tires. This ebay listing is for Michelin Protek 700 x38 tires but in the listing it states
ISO Width 35
Labeled Size 35
Michelin Protek 700x38 Black | eBay
Why does it say labeled size 35 if they're supposed to be 38c tires? Wondering if the listing is mislabeled or there's something about tire sizing I'm not clear on.
Thanks for all input.
ISO Width 35
Labeled Size 35
Michelin Protek 700x38 Black | eBay
Why does it say labeled size 35 if they're supposed to be 38c tires? Wondering if the listing is mislabeled or there's something about tire sizing I'm not clear on.
Thanks for all input.
You aren't likely to notice an actual difference in riding between a 35mm and 38mm tire, so I would just buy something that fits and not let it bother you.
01-18-15, 12:40 PM
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But it's fun to read the fanciful theories.
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An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
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An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
01-18-15, 09:32 PM
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01-18-15, 09:35 PM
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Why are you getting worked up over a question?
