The PUKY Lauflernrad is simple as the color matching (red-yellow) tricycle a great thing! It looks great, is durable and can be adjusted individually - it grows virtually with running learning child. Always to the protective cover for the front fork because children there just like to set up times when runs past the dog was more interesting or something else happens in the concentration will decrease ... I myself had a PUKY bike 30 years ago and it is great that such a reliable company lasts as long. The impeller is actually not very difficult, although it is built to last - for mom simply sometimes an advantage! ;-)