Thank goodness it only took me a couple of minutes to prove that biopace cannot result in constant tension. Sheldon agrees with me:
"There is a slight variation in tension resulting from the varying angle between the two straight runs of chain as the axis of the chainring rotates, but this has not generally been of a sufficient magnitude to cause any problem in practice for me. [I've tried this too, but I'm not as happy with the change in tension. The sprocket is smaller than the chainring, so the chain doesn't meet the chainring at two points precisely opposite one another -- John Allen.]" I can imagine the change is small with Biopace, which is almost round, but I no way was I going to believe that the difference was zero. :-) Bill Lindsay El Cerrito CA On Monday, March 10, 2014 2:10:11 PM UTC-7, Bill Lindsay wrote: > > Dangit. Now I'm not going to be able to focus on anything else for a few > hours figuring that out. Thanks for nothing! ;-) > > >>> -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
