4:32 PM

Odometer

Picture 580
 
I was working on some old bikes and I noticed this odometer.  It has got to be one of the crudest designs I have ever seen.  There is a pin that is attached to one of the wheel’s spokes (red arrow).  This pin then travels around and hits a little wheel on the odometer, in turn spinning it.  Not too sure how accurate it could be with a metal nipple banging on it every rotation but interesting none the less.