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A 275/50 shouldn't be wider than a 275/60, just shorter.

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275 is the section width and 60 mean that 60% of the section widith is the side wall.

Which means a 275/50 has about 10% more width in the thread area b/c the sidewall is only 50% of the section width"275".

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I think I know the answer, but this statement completely lost me.

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Quote:

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275 is the section width and 60 mean that 60% of the section widith is the side wall.

Which means a 275/50 has about 10% more width in the thread area b/c the sidewall is only 50% of the section width"275".

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I think I know the answer, but this statement completely lost me.

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Ya after i read what i wrote i was thinking i better just copy and paste something online that explains it. After i read 3 different explaination i thought wow my doesn't seem too bad now.

either way 275/50 is wider and shorter then a 275/60

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It got to the point that I did not want to drive wth the 295 50 15 tires anymore.
I switched back to 275 50 15 for more than one reason, though.
I need traction. The standard street tires would not grip on dry roads.
So back to the "Sticky" soft tires.......

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It got to the point that I did not want to drive wth the 295 50 15 tires anymore.
I switched back to 275 50 15 for more than one reason, though.
I need traction. The standard street tires would not grip on dry roads.
So back to the "Sticky" soft tires.......

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What's the size of that soft one?

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275 is the section width and 60 mean that 60% of the section widith is the side wall.

Which means a 275/50 has about 10% more width in the thread area b/c the sidewall is only 50% of the section width"275".

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I think I know the answer, but this statement completely lost me.

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I think I understand too, Let me take a crack at explaining it.

275 is the section width of the tire. This means that it's measured from the inside wall to the outside wall of the tire on a recommend wheel width. Because the sidewalls of a 60 profile tire will generally bow out more than the side walls of a 50 profile tire there is less difference between the TREAD width and the SECTION width of the tire. So yes a 275/50R15 will have a slightly wider tread width than a 275/60R15, but I don't think it ever reaches 10% when comparing the same line of tire from the same brand.

More so, a 275/60/15 from one tire line could have the same tread width as a 275/50/15 from another tire line IF the 60 profile has a stiffer sidewall construction. Generally this won't be true since the reason for going to a lower profile tire is to decrease sidewall deflection, so lower profile tires will generally have a stiffer sidewall. I hope this makes sense.

Anyway, the original poster was asking for fit-up on his car, all that matters then is section width which will be the same whether its a 60 profile or a 50 profile tire.

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275 is the section width and 60 mean that 60% of the section widith is the side wall.

Which means a 275/50 has about 10% more width in the thread area b/c the sidewall is only 50% of the section width"275".

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I think I know the answer, but this statement completely lost me.

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I think I understand too, Let me take a crack at explaining it.

275 is the section width of the tire. This means that it's measured from the inside wall to the outside wall of the tire on a recommend wheel width. Because the sidewalls of a 60 profile tire will generally bow out more than the side walls of a 50 profile tire there is less difference between the TREAD width and the SECTION width of the tire. So yes a 275/50R15 will have a slightly wider tread width than a 275/60R15, but I don't think it ever reaches 10% when comparing the same line of tire from the same brand.

More so, a 275/60/15 from one tire line could have the same tread width as a 275/50/15 from another tire line IF the 60 profile has a stiffer sidewall construction. Generally this won't be true since the reason for going to a lower profile tire is to decrease sidewall deflection, so lower profile tires will generally have a stiffer sidewall. I hope this makes sense.

Anyway, the original poster was asking for fit-up on his car, all that matters then is section width which will be the same whether its a 60 profile or a 50 profile tire.

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you said alot better ten I did. I said about 10% since both my friend and i had mickey tomas street radials installed on a 15x8 rim he had 275/60r15 i had 275/50/R15 I measured both tires as best i could eyeing it up with a tape measue and i was around 1 inch wider in the thread area maybe more"it as over a year ago when we noticed this and i don't remember it too clear." but the difference if width is very clear when looking at the two side by side