G'day Norm,
That design may not have caused Theo Reinhold [Greenfield's founder] too much lost sleep - I suspect he was one of those [now rare] folk who have an intuitive understanding of mechanical design principles. Used to be common, in the days when engineers had a lot of hands-on training.
Look at how little the basic Greenfield ride-on design has changed from the HD8...
The mark of a 'done right first time' design, IMHO.
