Tread profile of a pneumatic vehicle tire with an indicator for regrooving the profile

A tread profile of a pneumatic vehicle tire defining a radial direction (R), the tread profile comprising:

• a regroovable tread profile having radially raised profile elements and defining at least one groove which separates two mutually adjacent ones of said raised profile elements;
• said at least one groove defining a main extension direction (U) and having a groove base delimiting said at least one groove inwardly in the radial direction (R);
• said at least one groove having at least one regrooving indicator formed in said corresponding groove base;
• said at least one regrooving indicator including a blind-hole shaped depression having an intercept contour and a depression base;
• said blind-hole shaped depression with said intercept contour having an extension length (L) measured in said main extension direction (U) and an extension width (A1) measured transverse to said main extension direction (U);
• said blind-hole shaped depression being, in the radial direction (R), inwardly delimited by said depression base;
• said blind-hole shaped depression having an extension depth (T1) measured inwardly in the radial direction (R) starting from said groove base to said depression base;
• said extension depth (T1) being configured to indicate a regrooving depth;
• said at least one regrooving indicator further including an indent in said depression base of said blind-hole shaped depression and said indent being orientated transverse to said main extension direction (U);
• said indent having an indent base radially inwardly delimiting said indent;
• said indent further having an indent extension length (A2) measured transverse to said main extension direction (U), an indent width (B) measured in said main extension direction (U), and an indent depth (T2) measured in the radial direction (R) starting from said groove base and continuing to said indent base;
• said indent width (B) being less than said indent extension length (A2) and said indent width (B) being less than said extension length (L);
• said indent depth (T2) being greater than said extension depth (T2);
• said extension depth (T2) being configured to form a measure for a minimum regrooving depth;
• said indent depth (T2) being configured to form a measure for a maximum regrooving depth;
• and,
• wherein said indent extension length (A2) is less than said extension width (A1).