Inflatable rubber tires rather than solid plastic absorb the shock of rough pavement, which matters on a trike this size: a 14.5" front wheel, a 48" length and an 18" cargo basket at the back. A heavy-duty triangular carbon steel frame carries 200 lbs, so an older child or a teenager can ride it. The PU leather seat with sponge padding adjusts from 17" to 21" for riders up to 4.6 ft. Assembly required; net weight 32 lbs.