Tire size and brand?

MRGTX said
It sounds like you're running a 285/60/15 which would be ~11.2" wide and 28.5" tall.
If so, a 285/50/15 would keep almost exactly the same width but drop you down to ~26.2" diameter. Keep in mind that even though you're keeping the same width, you're still losing contact patch.

As for brands? No idea what's better than what. :D

Why try to calculate his tire with a fake size when he already said he was running a 28x11.50-15

Same width but lose contact patch?

Assuming you were to run the same width wheel a 285/60R15 and a 285/50R15 in the same brand and pressure will have the same contact patch. The only time you will lose contact patch as far as the tire is concerned (ignoring alignment or other vehicle variables) is if the rim width, tire pressure or brands change. A larger sidewall will produce more roll of the tire sidewall but for all practical purposes will not affect contact patch. You do know that both sizes you listed dont even exist right?

MRGTX said
@JeffisOld

What did I get wrong? The numbers came from a tire size calculator.

A 285/60R15 and a 285/50R15 are fantasy sizes. Just because a tire size calculator will compute the dimensions in a theoretical sense doesnt mean the tires are available. The op cant get any metric 15” thats going to give him enough width that he wants in a drag radial thats 26” tall. He will have to go with the u.s. sizes mentioned in my post.

As mentioned above a 275/50R15 is going to be the closest in height that he wants in a metric size. To gain the width of 11-12 inches and height of 26” he would have to go with a u.s. size

Go ahead disagree with this too, just because i disagree with your misguided and irrelevant information you have to go and disagree with my posts that actually point the op in the right direction. You deff should not be giving tire advice by simply using a tire size calculator especially when the sizes you calculated dont exist