Unfortunately, we have found that when our son is based on fixed on the handlebars, the whole wheel rolls backwards and our child lands on the face. Pity about the new teeth :-( We have passed the impeller, but even there the first lip was bloody after a short time. Would not be appropriate vertical rod, but a little obliquely forward, you could prevent the safe - I would have a better-thought-of Puky impeller expected ...
