Spike for tire, has wide body and narrow body arranged between insert and head that is arranged at axial end, where bodies include respective conical external profiles oriented towards insert and forming angles equal to specific degree

摘要

The spike (1) has an insert (2) arranged to an axial end, and a head (3) arranged at another axial end. Wide body (4) and narrow body (5) are arranged between the insert and head. The wide body has an average radial dimension (Rml) greater than an average radial dimension (Rme) of the narrow body. The wide body includes a conical external profile oriented towards the insert and forming an angle equal to 9 degree. The narrow body has a conical external profile oriented towards the insert and forming an angle equal to 7 degree.