Super on this wheel, I find that it grows. For already small children about (2 years, 80 cm tall) can provide and install the red axis on the head, so that the sheet sags downwards. The sturdy seat that position is ideal for long grow. If the child then times in about about 100 cm tall, you can rebuild the wheel according to the drawing. But even here, the child has a long pleasure because here the seat remains adjustable. (These are just about information, every child is individually) Ideal are the tires, especially with bumps on the route, or or for maximum safety. Cycling is then to snap. As a precaution against rain I would store the wheel always in the dry because it is feared that the wood absorbs the moisture. While it is well painted, but after the first fall (part of the learning it), or just let fall wheel dismount the paint on some is turn off.