Tire sizes for all Infiniti models Here you can find all of the factory and the permissible size of tires on the Infiniti. Select the required Infiniti model to see options. Select model ESQ EX FX G J30 JX35 M Q30 Q40 Q45 Q50 Q50L Q60 Q70 Q70L QX30 QX4 QX50 QX56 QX60 QX70 QX80