Patent ID: 7250463

Claim:
A tire comprising a rubber composition comprising at least a diene elastomer, a reinforcing inorganic filler, and a coupling agent providing the bond between the reinforcing filler and the elastomer, wherein said inorganic filler comprises at least one silica having all the following characteristics: a) a BET specific surface area of between 45 and 400 m 2 /g; b) a CTAB specific surface area of between 40 and 380 m 2 /g; c) an average particle size (by mass), d w , of 20 to 300 nm; d) a particle size distribution such that d w ≧(16,500/CTAB)−30; e) a porosity which meets the criterion L/FI≧−0.0025 CTAB+0.85; f) an amount of silanols per unit of surface area, N SiOH/nm 2 , N SiOH/nm 2 ≦−0.027CTAB+10.5.