@ 2010mayan: That may work. Do you mean instead of moving your legs in circular motion it would be more like pushing your feet alternately straight down? Would each foot...

well, magnets could easily be used to power lights on the bike using the concept of magnetic induction. If a couple magnets are placed on the spokes, when they pass...

To arjunoids: I think we're talking about two different things. We'd like this thread to stay on bicycles its quality of having a low environmental impact. About my idea of...

I may be thinking about this differently than others. I was thinking of how to make the average bicycle more efficient for the average person using it to commute. So,...

I think the key to making the bicycle more efficient is not to necessarily reduce lost energy due to friction (other than aerodynamics, there's not much left to reduce this),...

g-rakesh2: I looked into the Rotor pedal system and it turns out that there is no significant advantage to using them. #-Link-Snipped-#) Another innovation by Rotor is the q-ring (an...