Pneumatic tyre.

摘要

A pneumatic tyre having shoulder regions provided with shoulder grooves (6) and buttress hollows (10) arranged circumferentially of the tyre so that each buttress hollow (10) is positioned between the adjacent two shoulder grooves (6), the shoulder grooves (6) lies extended radially inwardly from the tread edges and terminated at a distance L1 inwardly from the outer surface of the tread region, whereby when the tread (15) has been worn out and the tyre is in a retreaded process, the radially inner ends of the shoulder grooves can provide the worker with a boundary at which the worker removes the worn tread rubber.