On Monday, August 6, 2012 6:18:41 PM UTC-7, ted wrote: > > Not a sub.
Don't have time to track down any blog posts on it, but the triangle stoutness is in the magazine quite a bit, both how he came to discover it, and how he went on to qualitatively measure it. In short, and taking liberties with Jan's description the frame is a spring. With the right amount of flex in the spring, energy can be absorbed on the down stroke and released as the pedal crest in rotation. Too much flex and the bike bobs, too little and the spring isn't stretched any. There's plenty of quantitative questions still open, but qualitatively "planing" as he calls it is pretty well settled, unless one thinks Jan is a complete kook. As he said in the blog, he's ridden some 50 bikes in the last 10 years like a borrowed mule. (OK, I added the second part.) I'm inclined to believe him on this point. Regards, -Allan -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/_7NJRZ5rIHIJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
