Tire tread a factor in tire size?

Howdy.

Is a tire's tread-depth/lug height figured into the tire size?

Like if you had 2 tires, same brand and size, but one was a burly mud-tire and the other was highway tire and you drove both of them all the way bald, would both of the tires be the same size without the tread?

Would a 35" tire, for example, if everything was the same except for the tread all be the same height? if you had a 35" BFG mudder, all terrain, and road tire all sitting together, are they just as tall as each other? Or would the mudder be the tallest, AT second, and road tire 3rd tallest as ranked by tread size?

 

Bump.

Does my question not make sense?

 

usually they'll all be pretty close to eachother. m/t and a/t will run a tad taller but only about 1/4in or so tops

 

I'm not sure where the manufacturers measure the tire size. That's a very interesting question.

I do know that between different models and manufacturers, the same stated tire size may have a different rolling circumference (overall circumference of the tire as it touches the roadway).

 

This seems to be a stumper...usually guys race to see who can answer first. O powerful master chris hasnt even chimed in.

 

Pretty sure it varies per manufacturer. I really dont think there is a standard. One will measure it bald, one at full tread, and one half way between the two. It might even vary between different models in the same company.

 

No, it makes sense and I'm surprised someone hasn't come up with the correct answer yet. I've never thought about it but it's a damn good question, M/T's have some pretty deep lugs.

 

Maybe one of our resident tire peddlers on here could answer this...interesting question!

 

The OPs original question was to find out the height difference between tires with various tread depths. So if you have 3 BFG tires an M/T, A/T and H/T, all the same size (say 265/70R17), are they the same height new or bald? Obviously there's not a huge height difference between them but the tread depth has to be accounted for somehow.

 

Tread depth is NOT taken into account when talking about tire size. As many have said, it depends on manufacturer. Compare different style tires from the same manufacturer and you will see differences in actual size.

BFGoodrich for example; 31x10.50x15: Mud-Terrain = 30.8, All-Terrain = 30.7.

 

Thanks, I guess.