BASE TREAD RUBBER COMPOSITION AND TYRE

Provided is a rubber composition for base tread which can provide excellent steering stability and rolling resistance and improve pass-by noise properties when applied to a tire. The present disclosure discloses a rubber composition for base tread to be used for base tread of a tread portion of a tire, where a ratio of storage modulus at 0 °C (0 °C E') to storage modulus at 30 °C (30 °C E') (0 °C E'/30 °C E') is in a range of 1.3 to 2.0.