Pneumatic tires

A pneumatic tire comprising a tread made from a rubber composition comprising 10-150 parts by weight of a silica filler, not more than 150 parts by weight of carbon black, wherein said carbon black and silica filler are present in a weight ratio of 95/5-10/90, and 0.2-10 parts by weight of at least one silane coupling agent represented by the following general formula:

• Y.sub.3 --Si--C.sub.n H.sub.2n A (I)
• (wherein Y is an alkyl group or alkoxyl group having a carbon number of 1-4 or a chlorine atom, provided that the three Y's are the same or different, n is an integer of 1-6, and A is an --S.sub.m C.sub.n H.sub.2n Si--Y.sub.3 group, an --X group or an S.sub.m Z group (in which X is a nitroso group, a mercapto group, an amino group, an epoxy group, a vinyl group, an imido group or a chlorine atom, Z is a:
• ##STR3## group, each of m and n is an integer of 1-6 and Y is the same as mentioned above)), based on 100 parts by weight of a polymer or copolymer rubber having a glass transition temperature of not lower than -50.degree. C. obtained by polymerization of 1,3-butadiene or copolymerization of 1,3-butadiene and styrene in an inert organic solvent with an organic alkali metal initiator, or a rubber blend of not less than 30 parts by weight of the above polymer or copolymer and not more than 70 parts by weight of another diene series rubber.