I have a Kettler made exercise bike called the "Topas". The control knob that increases the difficulty / intensity of the exercise stopped working and now when I use the bike it only works on the easiest level. How do I repair this?
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I have problems with adjusting the intensity on my kettler.Sometimes i can set it on higher levels of difficulty but most times i cant.I need to mention that the power comes from a different source that the original one.I`m really wondering if someone could help me.Thanks
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