I was looking at the Early Rirder Belter 16" child's bike and noticed that the rear wheel has radial spokes on both sides.
In wheels built for adult bikes this is considered bad practice. From Sheldon Brown's site:-
Wheels with hub brakes and drive wheels should never be radially spoked. Due to the near-perpendicular angle of the spoke to the hub's tangent, any torque applied at the hub of a radial-spoked wheel will result in a very great increase in spoke tension, almost certainly causing hub or spoke failure.
These bikes seem to be popular and get good reviews, so it seems that this isn't an issue in practice. Is this because of the small wheels and the fact that children don't produce so much torque?