A valid digital signature gives a recipient reason to believe that the message was created by a known sender (authentication), that the sender cannot deny having sent the message (non-repudiation), and that the message was not altered in transit (integrity).
Load index is an assigned number that corresponds with the load-carrying capacity of a tire. Most passenger car tire load indexes range from 75 to 100, but a few carry more. You'll also find the maximum load elsewhere on the tire sidewall, both in lbs and kg.
The wheel size is the measurement of the diameter of the wheel with a mounted tire. Usually the size is written on the tire sidewall, for example it might read 26 x 2.2â, a typical mountain bike size. This indicates the wheel is 26â and the tire is 2.2â wide.