of limiting the same and wherein like reference numerals are understood to refer to like components fig1 amp 2 show a pneumatic tire 10 having an example tread 30 in accordance with the present invention the example tread 30 may be positioned onto an example carcass 12 the example carcass 12 may include a pair of first and second annular beads 14 and a pair of apexes 16 positioned radially above the first and second annular beads 14 the example carcass 12 may include one or more plies 18 that may extend around the beads 14 the example carcass 12 may further define a crown region 26 and a pair of sidewalls 28 the carcass 12 may include other components such as an inner liner 20 sidewall rubber portions 22 a belt package 24 and an overlay not shown the example tire tread 30 is shown in its cured and finished state in fig1 amp 2 the tread 30 may have a tread cap 32 formed of a first material 36 and a tread base 34 formed of a second material 38 the first material 36 may have a modulus substantially different than the second material 38 the second material 38 may have a substantially higher modulus than the first material 36 alternatively the first material 36 and the second material 38 may be the same the tread 30 may have a first set 40 of plugs 44 or z plugs of a third material 39 that extend radially from the tread base 34 through the tread cap 32 to an outer ground contacting surface 46 of the tread the tread 30 may.