A wheel assembly adapted for connection to a chassis (2) has a first trailing arm (28) pivotally suspended, from a first end, to the chassis (2); a first wheel mounting stub axle (26) located at or adjacent to the free end of the trailing arm (28); and a first connection means (32,33) located adjacent the first wheel mounting stub axle (26). The assembly further comprises a second trailing arm (29) pivotally suspended from a first end to the chassis (2) and having its second end free and angled with respect to the chassis (2) in the same direction as the first trailing arm (28); a second wheel mounting stub axle (27) located at or adjacent the free end of the second trailing arm (29), a second connection means located adjacent the second wheel mounting stub axle (27); a first bracket (36) located on the chassis (2), between the the first and second trailing arms (28 & 29); a second bracket (39) located on the chassis (2) on the one side of the first bracket (36) beyond the first wheel mounting stub axle (26), a third bracket located on the chassis on the other side of the first bracket (36) beyond the second wheel mounting stub axle (27); a pivoting linkage (37) connected to the first bracket (36) and extending on each side thereof, a first leaf spring (35) connected between one end (38) of the pivoting linkage (37) and the second bracket (39) with the first connection means (32,33) of the first trailing arm (28) connected to the middle of the first leaf spring (35); and a second leaf spring (40) connected between the other end of the pivoting linkage (37) and the third bracket, with the second connection means (31) of the second trailing arm (29) connected to the middle of the second leaf spring (40).