☎ 1-855-557-9883Why does dispatch keep asking for the exact tire size?
Because the tire has to be on the service truck when it leaves the yard. The sidewall number (like 11R22.5 or 295/75R22.5) plus the position is what lets a tire tech commit to a one-trip fix. A guessed size means a second trip, and on the shoulder, a second trip is another hour or two of your day.
Heavy-duty tires are not interchangeable the way they look from six feet away. 295/75R22.5 and 11R22.5 stand nearly the same height but are different tires; load range matters when you are grossing heavy; and steer positions have their own requirements. The ten seconds it takes to read the sidewall — any tire on the same axle will do if the blown one is shredded — saves more roadside time than anything else you can do.
If the sidewall is destroyed and no mate exists (a super-single, say), a photo of the wheel and the tire’s remains plus your truck’s spec sheet usually gets it identified. RIG’s chat accepts photos precisely for this: the dispatcher and the bidding techs see what you see, and the tire that shows up is the tire you need.