Pneumatic vehicle tire with tread having circumferential grooves having projections

A pneumatic vehicle tire, comprising:

• a tread periphery;
• a plurality of circumferential grooves having a width;
• said circumferential grooves running in circumferential direction and having outer edges on said tread periphery running at least largely parallel with one another and running around at least substantially linearly in said circumferential direction;
• said circumferential grooves each having a groove base forming a groove base path running at least approximately in a wave shape or zigzag shape and being narrower than said width of said circumferential grooves on said tread periphery, said groove base path having inwardly pointing corners;
• said circumferential grooves having groove sides with side surfaces running in direction of said groove base path and with projections associated with said inwardly pointing corners being adjacent in said circumferential direction;
• said projections being parts or sections of bodies each having a base surface with at least four free sides running inclined at a relatively larger angle of at least 60° relative to a radial direction near said tread periphery and having boundary faces running inclined at a relatively smaller angle relative to said radial direction from said free sides in direction of said groove base;
• each two of said side surfaces being disposed between said adjacent projections and said surfaces having an angle of inclination relative to said radial direction being greater than said angle of said boundary faces and smaller than said angle of said base surface;
• and
• wherein said base surface is attached to said groove side at a point spaced apart from said tread periphery by a distance of between 10% and 20% of a profile depth.