Patent ID: 8754159

Claim:
A tire prepared by using for a tire member, a rubber composition which contains a rubber component comprising a modified natural rubber containing a polar group in the rubber molecule and precipitated silica, wherein the precipitated silica is produced by a precipitation process and wherein in the precipitated silica, a cetyltrimethylammonium bromide-adsorbing specific surface area (CTAB) (m 2 /g) of the precipitated silica and the mode A ac (nm) in diameters of primary aggregates thereof determined by acoustic measurement of particle size distribution satisfy equation (I) shown below and the mode A ac is 1000 nm or less, and wherein in the precipitated silica, an ignition loss defined as mass reduction % when heated at 750° C. for 3 hours and a heating loss defined as mass reduction % when heated at 105° C. for 2 hours satisfy equation (II) shown below: A ac ≧−0.76×( CTAB )+274 (I) (ignition loss)−(heating loss)≦3 (II).