Re: Autobike

Posted by Packard Newbie On 2020/4/29 1:05:39

David Packard,

The 3 black things are the actual weights that slide outward with centrifugal force which in turn, pushes the collar behind the gear sprocket cluster, forcing the derailleur to change gears from one sprocket to another. I looked them up on the net (Autobike) and it sounds like they developed the concept from this mechanical governor to a computer activated change system in later years. They say good things about the original iteration though, with it being quite hardy and reliable. It doesn't sound like it 'caught on' in the bicycle world; probably why I've never seen another one of them around. Chris.