TttStill having a hard time working out how a square sprocket delivers 4 times more power to the rear wheel. If that were the case wouldn't all world class cyclists be using square gears?
WeeI had a mountain bike about 30 years ago that had "Biopace" chain wheels from Shimano. They were elliptical and gave you taller gearing on the power stroke. Can't really say they made a significant difference.
GggWow, how I wish I could give my brother-in-law this little motorcycle that turns into a suitcase, or at least something similar, he would be able to go outside, be able to leave the house, be able to get around, feel active and independent ..he lost a foot and one of his legs because of diabetes, so he was so active, my dream was to be able to do this for him, I have faith in God that one day I will be able to.
Neat to see, but none of these will go mainstream. The Cargo one has the best chances, but if you need a cargo bike, why not make it more solid with fewer parts?
