The present document discloses a roller segment (10, 10a, 10b, 10c, 10d) for forming a roller wheel (1) rotatable about an axis of rotation for an agricultural implement, comprising a central portion (101), which is adapted for attaching to an axle (11), a first radial portion (102), which extends radially outward from a first end of the central portion (101), and a curved outer portion (103), which extends from a radially outer portion of the first radial portion (102). The roller segment further has a second radial portion (104), which extends radially outward from a second end of the central portion (101). The first radial portion (102) has a first coupling part (106). The second radial portion (104) has a second coupling part (107), which is located at the same radial distance from the central portion (101) as the first coupling part (106).