This invention relates to a tire which is comprised of a generally
toroidal-shaped carcass with an outer circumferential tread, two spaced
beads, at least one ply extending from bead to bead and sidewalls
extending radially from and connecting said tread to said beads; wherein
said tread is adapted to be ground-contacting; wherein the tread is
comprised of: (1) an amino group containing rubbery polymer, wherein said
amino group containing rubbery polymer contains from about 0.1 weight
percent to about 20 weight percent monomer units containing an amino
group, (2) from 0.1 to about 25 phr of an organophilic 2:1 layered
silicate clay selected from the group consisting of montmorillonite
clays, bentonite clays, hectorite clays, saponite clays, nontronite
clays, beidellite clays, fluorohectorite clays, stevensite clays,
volkonskoite clays, sauconite clays, and laponite clays, and (3) a silica
coupling agent.