Patent ID: 8776849

Claim:
A retreaded tire, comprising: a precured tread band bonded to a prepared bonding surface of a base portion of a worn tire, the base portion comprising a worn tread portion of the worn tire and the precured tread band comprising a primary tread groove having a top open to a ground contacting front face of the tread band and a secondary tread groove having a bottom open to a back face of the tread band, the back face bonded to the prepared bonding surface, wherein the groove top of the secondary tread groove is higher than a groove bottom of the primary tread groove so that the secondary groove top is opened to the ground contacting front face of the tread band prior to disappearance by wear of the primary tread groove; and a base tread groove formed in the base portion of the worn tire and open to the prepared bonding surface of the worn tire, wherein the secondary tread groove is arranged overtop the base tread groove, and such that the secondary groove bottom is in fluid communication with the base groove and such that the secondary tread groove and the base tread groove form a groove in the retreaded tire having a depth equal to a combined depth of the secondary tread groove and the base tread groove, where the secondary tread groove and the base tread groove each have a length extending in a direction of the length of the precured tread.