Pneumatic vehicle tyre having a tread with profile positives' in which there are formed through-extending sipes which run at an angle of 0° to 45° with respect to the axial direction and which run parallel to one another at least in groups and which have a width (b 1) of 0.4 mm to 1.2 mm, wherein the sipes are each locally widened by a channel (5, 5', 5", 5′′′) with at least one channel portion (5a 2) which proceeds from the tread periphery and which runs in a radial direction, and at least one channel portion (5b, 5b', 5b") which adjoins said channel portion (5a 2) and which emerges from the profile positive, wherein all of the channel portions (5a 1, 5a 2, 5b, 5b', 5b") have a circular cross section, characterized in that the channel (5, 5', 5", 5′′′) is composed of an inverted T-shaped channel region and two channel portions (5b, 5b, 5b") each emerging from the profile positive by way of a channel opening, wherein the inverted T-shaped channel region is composed of the channel portion (5a 2) which proceeds from the tread periphery and which runs in a radial direction and forms the longitudinal beam of the T, and a channel portion (5a 1) which forms the transverse beam of the T, wherein the channel portions (5a 1, 5a 2) forming the longitudinal beam of the T and the transverse beam of the T have identical diameters (d 1) and are the narrowest channel portions (5a 1, 5a 2, 5b, 5b', 5b"); wherein the channel portion (5a 1) forming the transverse beam of the T has a length (l 1) which is 150% to 300% of the diameter (d 1) of the channel portion (5a 1, 5a 2) forming the longitudinal beam of the T, or the transverse beam of the T, respectively, wherein the ends of the channel portion (5a 1) forming the transverse beam of the T are in each case adjoined by one of the channel portions (5b, 5b', 5b") that emerge from the profile positive by way of a channel opening and, proceeding from the channel portion (5a 1) forming the transverse beam of the T, widen in each case towards their channel opening. the channel (5, 5', 5", 5′′′) is composed of an inverted T-shaped channel region and two channel portions (5b, 5b, 5b") each emerging from the profile positive by way of a channel opening, wherein the inverted T-shaped channel region is composed of the channel portion (5a 2) which proceeds from the tread periphery and which runs in a radial direction and forms the longitudinal beam of the T, and a channel portion (5a 1) which forms the transverse beam of the T, wherein the channel portions (5a 1, 5a 2) forming the longitudinal beam of the T and the transverse beam of the T have identical diameters (d 1) and are the narrowest channel portions (5a 1, 5a 2, 5b, 5b', 5b"); wherein the channel portion (5a 1) forming the transverse beam of the T has a length (l 1) which is 150% to 300% of the diameter (d 1) of the channel portion (5a 1, 5a 2) forming the longitudinal beam of the T, or the transverse beam of the T, respectively, wherein the ends of the channel portion (5a 1) forming the transverse beam of the T are in each case adjoined by one of the channel portions (5b, 5b', 5b") that emerge from the profile positive by way of a channel opening and, proceeding from the channel portion (5a 1) forming the transverse beam of the T, widen in each case towards their channel opening.