Initially we had a scooter 2 rear wheels but my son (who has not bcp equilibrium) falling all the time and suddenly did not want to go back on it. By observing other children we soon saw they had ... ALL micro rightly! The child can quickly keep in balance on one leg without falling at the beginning it only straight lines, we must learn to look to turn the handlebars. + Another point: its lightness (for parents when to bring ...) In short it has taken but we feel that the quality is there and that it will last long