These are replicas of the "SIR" tires many of the monster trucks today run.
There are 16 versions in the pack all labeled by the first letter of the color.
CIR16R.bin is the main tire(Silver).
CIX16R.bin is the main tire(Black)
CIRX16R.bin is the main tire (no beedlocks)
CIRXB16R.bin is the main tire (no beedlocks Black)
The rest of the tires run under the same name with the first letter of the color
added at the end.
Example - CIRB16R.bin is the blue beedlock version.
These tires are meant for all to use so feel free to use them as many times as
you want! Oh yeah, don't forget to give me credit!