Since I need over the winter days to work out something (as a spare bicycle) I bought the exercise bike. Since I have only a little space, to me the exercise was to fold up just right. The construction went without a hitch. Also sitting on one pretty well. Unfortunately, in my opinion, the impact resistance is supplied ring to have a Trainingseffkt. This is probably because I drive my bike and my leg muscles is quite well built. For me, the resistance was not strong enough in the strongest setting and the unit returned. I think for people with a non-trained leg muscles could the device function.
