Guide system comprising a) at least one roller block (1; 21; 51), in particular for guiding and fastening an assembly platform provided with a drive rail (15; 35) during manufacture of a concrete structure, comprising at least one first wheel and a second wheel which are mounted on a base body (2; 52) of the roller block (1; 21; 51) such that they can rotate, and comprising fastening means for direct or indirect fastening of the roller block (1; 21; 51) to a structure surface (42; 50), in particular a protruding structure surface (42; 50), wherein a first axis of rotation, about which the first wheel can be rotated, is oriented non-parallel with respect to a second axis of rotation about which the second wheel can rotate, and wherein the first wheel is mounted axially displaceable with respect to the first axis of rotation, and the second wheel is mounted axially displaceable with respect to the second axis of rotation, and b) at least one holding device, in particular wherein the at least one holding device is designed for fastening an assembly platform, wherein a drive rail (15; 35) is formed in the holding device, wherein the drive rail (15; 35) can be disposed on the wheels (10, 12, 62) of the at least one roller block (1; 21; 51), and wherein the drive rail (15; 35) forms locating edges for abutment of the wheels (10, 12, 62), in particular wherein an inner contour of the drive rail (15; 35) in the area of the locating edges corresponds to an outer contour of the wheels (10, 12, 62), characterized in that the drive rail (15; 35) forms a first and a second load input edge (16; 36) which, in the disposed-on state, abut the first and the second wheel (10, 12) on the same side in each case, that the drive rail (15; 35) forms a first and a second boundary edge (17; 37) which, in the disposed-on state, abut the first and the second wheel (10, 12) on opposing sides in each case, that the directions (K1, K2) of forces applied to the wheels (10, 12), which result from the abutment of the respective wheel (10, 12) on its associated load input edge (16; 36) and its associated boundary edge (17; 37), are inclined with respect to the axis of rotation (11, 13) of the wheel (10, 12) in each case, and that the maximum axial path of displacement of the wheels (10, 12, 62) is at least 5mm, preferably at least 10mm. a) at least one roller block (1; 21; 51), in particular for guiding and fastening an assembly platform provided with a drive rail (15; 35) during manufacture of a concrete structure, comprising at least one first wheel and a second wheel which are mounted on a base body (2; 52) of the roller block (1; 21; 51) such that they can rotate, and comprising fastening means for direct or indirect fastening of the roller block (1; 21; 51) to a structure surface (42; 50), in particular a protruding structure surface (42; 50), wherein a first axis of rotation, about which the first wheel can be rotated, is oriented non-parallel with respect to a second axis of rotation about which the second wheel can rotate, and wherein the first wheel is mounted axially displaceable with respect to the first axis of rotation, and the second wheel is mounted axially displaceable with respect to the second axis of rotation, and b) at least one holding device, in particular wherein the at least one holding device is designed for fastening an assembly platform, wherein a drive rail (15; 35) is formed in the holding device, wherein the drive rail (15; 35) can be disposed on the wheels (10, 12, 62) of the at least one roller block (1; 21; 51), and wherein the drive rail (15; 35) forms locating edges for abutment of the wheels (10, 12, 62), in particular wherein an inner contour of the drive rail (15; 35) in the area of the locating edges corresponds to an outer contour of the wheels (10, 12, 62), characterized in that the drive rail (15; 35) forms a first and a second load input edge (16; 36) which, in the disposed-on state, abut the first and the second wheel (10, 12) on the same side in each case, that the drive rail (15; 35) forms a first and a second boundary edge (17; 37) which, in the disposed-on state, abut the first and the second wheel (10, 12) on opposing sides in each case, that the directions (K1, K2) of forces applied to the wheels (10, 12), which result from the abutment of the respective wheel (10, 12) on its associated load input edge (16; 36) and its associated boundary edge (17; 37), are inclined with respect to the axis of rotation (11, 13) of the wheel (10, 12) in each case, and that the maximum axial path of displacement of the wheels (10, 12, 62) is at least 5mm, preferably at least 10mm.