Rubber composition and tyres

A sulfur-crosslinkable rubber mix especially for use in tire treads contains (A) a diene rubber; (B) liquid polybutadiene of molecular weight 1500-10000 and vinyl content 15-50%; (C) a polar filler; (D) highly-structured carbon black with iodine absorption number 115-200 g/kg and DBP number 125-160 ml/100 g; and (E) a glyceride and/or factice.