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  1. natted

    Clacking noise - Kalkhoff Impulse 2 motor

    I was so very close to purchasing a Focus Aventura with the Impulse 2 mid drive - I was in a bike shop looking at the bike and then decided to sleep on it. After researching and finding these forums and the post on Endless Sphere showing the inadequate bearing, I reviewed my decision and found a...
  2. natted

    Clacking noise - Kalkhoff Impulse 2 motor

    Have you guys seen this post relating to the Impulse reliability? Possibly it has already been posted but just thought I'd pass it on in case it hasn't. Even has part number for the bearing etc. https://endless-sphere.com/forums/viewtopic.php?f=3&t=80115 What I'm trying to figure out is if...