This unit had to go home because the first hard plastic tricycle tires and had the noise level was high. The Kettler device is processed perfectly, very robust and expected to give the tires no noises. The only slight downside for us is that the bar does not allow steering in fixed state (which we were so used to from our other tricycle). Ie, when steering is first doing a little difficult because you have to do this by pressing down the bar with simultaneous "Left or Right" -Press. After a month or two but you get the grip ...
