Patent ID: 7671126

Claim:
A tire having a circumferential thin tread with a thickness in a range of from about 1.2 mm to about 12 mm composed of a rubber composition which is comprised of, based upon parts by weight per 100 parts by weight rubber (phr): (A) at least one conjugated diene-based elastomer comprised of polymers and copolymers of isoprene and 1,3-butadiene; copolymers of styrene and at least one of isoprene and 1,3-butadiene; and natural cis 1,4-polyisoprene rubber; (B) about 20 to about 100 phr of reinforcing filler and coal dust for said tread rubber composition comprised of: (1) about 5 to about 50 phr of particulate, rubber reinforcing carbon black having a DBP (dibutyl phthalate) adsorption value in a range of from about 90 to about 170 cc/100 g together with an Iodine adsorption value in a range of from about 75 to about 230 m 2 /g. (2) about 2 to about 40 phr of coal dust, and (3) about 5 to about 35 phr of precipitated silica without silica coupling agent.