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Old 05-23-2018, 12:06 PM
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Question 315/70r17 cheaper than 35x12.50r17 - Why?

Just curious about this question. 315/70r17 and 35x12.50 are effectively the exact same size (assuming manufacturers aren't stretching the truth about sizing on one or the other).

But the metric size tires are always quite a bit cheaper. Why? Is it just marketing? Is there a reason to get the Quarter Pounder instead of the Royale with Cheese?



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Old 05-23-2018, 03:49 PM   #2
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People like to see the 35 on the side to look cool.

Sometimes the 35s have a different rating which can impact price.

I mostly think it's people like seeing the 35.

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Old 05-23-2018, 07:31 PM
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Yeah, that's basically my sense as well. Also maybe because the tires would only be for the US market?
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Old 05-23-2018, 07:38 PM   #4
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There may be other factors involved, like the number of bands, both on the tread and the sidewall, different traction/wear ratings, and load ratings.

My uncle once told me the metric measurements were for passenger vehicles, and the standard measurements were for LT, light trucks, meaning it would see heavier loads, and rougher service life.

Though, the other tire rating numbers should tell you the same.
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Old 05-24-2018, 08:48 AM   #5
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It's because 315/70-17 is a factory size for some 4x4s and 35x12.50-17 is not. Therefore, they sell 315s at a ratio far greater than 35s and the prices are able to be kept lower.

It's the same reason you can buy 315/70 for less than 285/75, 295/70, or 305/70. Even though the 315 is larger and uses more material to manufacture, they just sell so many more of them that they can keep the prices low.
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