At first, we find the sympathetic, then ........ too. With the arrival of the product, of course you have to climb it, the explanations are in French and understandable. (Chic) I shake tension wheel, the first pedal stroke I find that it do nothing, and no, I have to loosen because the more you pedal, the more things become difficult. This mini bike is lightweight, which suits me to move because I did not have too much arm strength. It is silent, does not take place and it is stable. I, who wanted a bike but I lack of space (35 m2) is the ideal I hope he will show me use a very long time. I do not regret my purchase, Good value for money