Tire and mold comprising a fluidic passage

A tire comprising a tread including a running layer having a running surface configured to come into contact with the ground when the tire rolls on the ground, and a sublayer, comprising a cellular material, located radially inwards from the running surface of the running layer of the tread, the running layer being a single running layer contacting the sublayer, the tread comprising at least one fluid passage arranged between the sublayer and the air surrounding the tire, the at least one fluid passage comprising at least one element chosen from the group consisting of a groove and a cut, the at least one fluid passage being formed in the running layer and extended by at least one radial extension of the at least one element, the at least one radial extension extending within and opening into the interior of the sublayer, which allows evacuation of fluid from the cellular material to the air surrounding the tire,

• wherein each radial extension forms a localized part of the fluid passage and radially extends for only a part of the length of the at least one element, and
• wherein a bottom surface of the at least one element is formed within the running layer such that the bottom surface of the at least one element is spaced from a radially outer surface of the sublayer.