Pneumatic tire having a rubber component containing high impact polystyrene

A pneumatic tire having a rubber component where the rubber in said component is comprised of

• (A) from 1 to 25 weight percent of high impact polystyrene comprising no less than 90 percent by weight of units derived from styrene and not in excess of 10 percent by weight of units derived from a monomer of the formula
• wherein R1 and R3 are selected from the group consisting of hydrogen, halogen, alkyl groups of 1 to 4 carbon atoms, carboalkoxy or R1 and R3 taken together represent an anhydride linkage (—COOOC—) and R2is selected from hydrogen, vinyl, alkyl or alkenyl groups having from 1 to 12 carbon atoms, cycloalkyl, carboalkoxy, alkoxy-alkyl, alkyl carboxy, ketoxy, halogen, carboxy, cyano or pyridyl and n is 0 or an integer from 1 to 9;
• and
• (B) from 75 to 99 weight percent of a rubber containing olefinic unsaturation.