Originally Posted by
100bikes
There are many, but my all time favorite useless item was the
Inclinometer. Small plastic tube, similar to a carpenters level, mounted next to a scale.
This thing was mounted to the top tube of the bicycle.
As you rode, the small ball in the tube would indicate the slope you were currently riding at.
First, the thing was difficult to read, especially while riding.
Second - who cares!
Sorry, no photo at this time.
rusty
As others have commented, there actually was/is a market for that.
Mount it sideways, and it's a ball bank indicator!
Now (according to my friend) Garmins do have this display mode in case the information is wanted.