When a manufacturer gives the width of a MT tire are the sidebites included in that measurement? More specifically Mickey Thompson MTZs.

I tried doing a google search but M/T sidebiter wheels keep popping up. :D I might have to call M/T to find out but I wanted to post here too in case anyone else might have the same question down the road.

Width of a tire (in sizing) is from sidewall bulge to bulge, not the width of the tread, thats why some 265's have more tread width than others, but are still 265's.

Lets look at a 225/xxRxx
The 225 indicates this tire is 225 millimeters across from the widest point of its outer sidewall to the widest point of its inner sidewall when mounted and measured on a specified width wheel. This measurement is also referred to as the tire's section width. Because many people think of measurements in inches, the 225mm can be converted to inches by dividing the section width in millimeters by 25.4 (the number of millimeters per inch).



Copied from Tire Rack:
Tread Width is the distance between the outer edge and the inner edge of the tread of a new tire. However today's radial tires often feature tread designs that incorporate rounded shoulders and there is no industry standard pertaining to "how much" of the rounded shoulders should be included in the tread width measurement. Because of this, it is difficult to accurately compare the tread width differences of one tire brand to another. Tread width measurements are best used when comparing the various tire sizes or lines manufactured by a single tire manufacturer. Several tire manufacturers have chosen not to publish tread width dimensions.

I know that...the tread width Im not worried about, its only 8.9". I worried about the overall width of the tire from the left sidebiters to the right sidebiters. M/T says its 12.7" which is fine but if thats NOT including the sidebiters they wont fit without rubbing the UCA.

. M/T says its 12.7" which is fine but if thats NOT including the sidebiters they wont fit without rubbing the UCA.

According to Industry standards, the widest points of the sidewall should be the sidebiters so they should be included