Tire tread
FIG. 1 is a perspective view of a tire tread showing our new design it being understood that the tread pattern is repeated throughout the circumference of the tire tread and the opposite side is the same as that shown; 
     FIG. 2 is a front elevational view thereof; 
     FIG. 3 is a side elevational view thereof; and, 
     FIG. 4 is an enlarged fragmentary front view thereof. 
     The broken line showing of the tire sidewall in FIGS. 1 and 3 of the drawing is for illustrative purposes only and forms no part of the claimed design.