http://ohgizmo.disqus.com/enTue, 25 Apr 2006 10:35:02 -0000http://www.ohgizmo.com/2006/04/24/the-hettlage-drive-puts-belts-on-bikes/#comment-1756919<p>This is great. I always thought that there should be a bike that shifts automatically to keep a constant strain on the legs. This is a great step in this direction - al is needed in some electronic control to vary the diameter of the rear cog as a funtion of belt strain. Maybe the belt can have a strain sensor inserted into it.</p>narTue, 25 Apr 2006 10:35:02 -0000