Tread block arrangement having a supporting sipe

A tire comprising:

• a cylindrical part, and
• a tread block arrangement forming a tread of the tire, the tread configured for forming a rolling contact of the tread against a ground surface, the tread block arrangement comprising tread blocks defining a first side of the tread and a second side of the tread, wherein the tread blocks limit at least one longitudinal groove that is left in between the first side and the second side of the tread in a transversal direction of the tread block arrangement and that extends in a direction transverse to the transversal direction, wherein the tread blocks limit a first number of sipes, wherein a second number of the sipes are transversal sipes, and a third number of the transversal sipes form a group, wherein for each sipe of the group, the tread block arrangement forms a bottom, a first sidewall, a second sidewall, and a first end wall, wherein each sipe of the group comprises a second end wall that has a different average inclination than the first end wall, and the first end wall of each sipe of the group is configured so that:
• a distance between the first end wall of the each sipe and an outer side of tread block arrangement is less than a distance between the other end of the each sipe and the outer side, wherein the tread block arrangement comprises a first marking defining the outer side, or the first end wall is closer to the outer side than to an opposite other side of the tread block arrangement,
• at least a part of the first end wall of the each sipe has a first surface normal of the each sipe, and
• the first surface normal of the each sipe forms a first minimum angle of the each sipe of at least 20 degrees with the tread, wherein a ratio of the second number of sipes to the first number of sipes is at least 75%, and a ratio of the third number of sipes to the second number of sipes is at least 30%;
• and wherein the tread blocks of the tread block arrangement are arranged on the cylindrical part of the tire, wherein:
• the tread of the tread block arrangement forms a cylindrical tread of the tire, the cylindrical tread of the tire is configured to form a rolling contact against the ground surface, and the longitudinal groove of the tread block arrangement forms a circumferential groove of the tire.